COMPRENDRE ET MESURER LES ÉMISSIONS DE GAZ À EFFET DE SERRE DES RÉSERVOIRS HYDROÉLECTRIQUES AVEC L'OUTIL G-RES - Jeudi 29 avril 2021 14h GMT/TU ...
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COMPRENDRE ET MESURER LES ÉMISSIONS DE
GAZ À EFFET DE SERRE DES RÉSERVOIRS
HYDROÉLECTRIQUES AVEC L'OUTIL G-RES
Jeudi 29 avril 2021 • 14h GMT/TU • 1h30
Coordination et modération 1
INFORMATIONS LOGISTIQUES
Écouter Poser des questions Revoir et partager
Difficultés liées à la Par écrit, via le panneau Enregistrement et
qualité des connexions de configuration, à diapositives accessibles
n’importe quel moment gratuitement, par tous et Introduction
Pour améliorer la qualité, en tout temps Alain Kilajian,
fermez toutes les Questions discutées à la IHA
applications non utilisées fin des présentations Sara Mercier-
IFDD https://www.ifdd.francophonie.org/sel
Blais, UQAM
Discussion
Chaîne IFDD OIF
Mot de la fin
22
ORDRE DU JOUR
Introduction
Alain Kilajian,
IHA
Mot de Interventions Questions et Mot de la fin Sara Mercier-
Blais, UQAM
bienvenue des experts- discussion et enquête Discussion
invités Mot de la fin
33
MOT DE BIENVENUE
Ibrahima DABO
Spécialiste de programme IFDD
Évaluer la performance Application et utilité des outils
environnementale et sociale d’évaluation de la durabilité
PLUS DE 30 des projets hydroélectriques des projets hydroélectriques
SÉMINAIRES EN LIGNE Jeudi 13 décembre 2018 Jeudi 13 février 2020
SUR L’ÉNERGIE DURABLE
À voir ou revoir ! Introduction
Alain Kilajian,
IHA
https://formation.ifdd.francophoni https://formation.ifdd.francop
Sara Mercier-
e.org/sel-projets-hydro- honie.org/sel-outils-durabilite- Blais, UQAM
electriques/ hydroelectrique/
Discussion
Mot de la fin
44
BON SÉMINAIRE EN LIGNE !
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
55
LES EXPERTS CONFÉRENCIERS
COMPRENDRE ET MESURER LES ÉMISSIONS DE
GAZ À EFFET DE SERRE DES RÉSERVOIRS
HYDROÉLECTRIQUES AVEC L'OUTIL G-RES
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Alain Kilajian Sara Mercier-Blais Blais, UQAM
Discussion
Spécialiste principal en Agente de recherche
développement durable Chaire UNESCO en Changements Mot de la fin
Association internationale de environnementaux à l’échelle du globe,
l’hydroélectricité (IHA) Université du Québec à Montréal (UQAM) 66
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES des réservoirs
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd
Cultural Organization
Global environmental
change
du Québec à Montréal
(Canada) Avril 2021
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Modification du cycle naturel du carbone
• Émissions naturelles (flèches noires)
• Émissions anthropiques (flèches rouges)
croissantes: Agriculture, transport,
industrie, énergie
GIEC 2013
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES provenant la production d’énergie
• Biomasse, charbon, gaz naturel... Introduction
– Émissions de GES et énergie provenant de la combustion. Alain Kilajian,
IHA
• Solaire, éolien, ... Sara Mercier-
Blais, UQAM
Discussion
– Émissions de GES provenant principalement de la construction. Mot de la fin
• Hydroélectricité
– Émissions de GES provenant principalement de la transformation naturelle du
carbone à la suite de la mise en eau.
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES provenant de la production d’électricité
Charbon
Gaz naturel
Hydroélectricité (GIEC)
Hydroélectricité
Solaire
Éolien
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Modifié à partir de Fig 7.6
GIEC AR5 2014 Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Transformation d’une rivière en réservoir
(A) Pre-impoundment
Pre-impoundment
emissions
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Introduction
Organic carbon
from river Alain Kilajian,
IHA
Lateral transport
Pelagic production Sara Mercier-
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Blais, UQAM
CO2 and CH4
CH4 oxidation at oxycline emissions
Thermocline Discussion
CH4 production
in anoxic water
and sediments Mot de la fin
Degradation of /looded organic matter
Prairie et al. 2017United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Qu’est-ce que les émissions naturelles de GES
(gaz à effet de serre)?
• Les GES sont produits naturellement par des
organismes vivants.
• Principalement par des bactéries.
• De la décomposition de la matière organique.
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Pourquoi s’intéresser aux GES?
Défis à relever pour la déclaration des émissions de GES :
1. Échantillonnage sur le terrain
2. Application des moyennes régionales
3. Modélisation
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Évaluation des émissions de GES
Échantillonnage sur le terrain
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Évaluation des émissions de GES
Application de moyennes régionales (ou facteur d’émission) :
• Moyenne des émissions mesurées.
• Par zone climatique.
• Peut masquer certaines caractéristiques spécifiques des réservoirs.
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Évaluation des émissions de GES
Modélisation:
• Modèles de base avant le projet G-res:
Barros et al 2011
Modèle simple uniquement basé sur l’age et la latitude
Résultats: Seulement émissions diffusives
Introduction
Deemer et al 2016
Alain Kilajian,
Ajout ébullition IHA
Base de données plus grande (267 réservoirs) Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
** Modèles qui peuvent masquer certaines caractéristiques
spécifiques des réservoirs.United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Validate your
Results
Save Input
Parameters
Import Saved
Parameters
Printable
Reports
Export to .txt
file
Technical
Support
Outil G-res
For assessing and reporting the greenhouse
gas emissions of a reservoir
PARTNERS:
Reservoir Name
Warning:
Restart Analysis with Please never refresh the page with the Reload Page button of the browser.
This web page will disconnect automatically after 30 minutes of inactivity.
a New Reservoir The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
Introduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
Validate your Save Input Import Saved Printable Export to .txt Technical
Results Parameters Parameters Reports file Support
Online Technical Document Current Totals tCO2e/ yr
Input Page 2/ 4 - Reservoir Data for Reservoir
For assessing and reporting the greenhouse
gas emissions ofPost-Impoundment
a reservoir
On this sheet, enter the key parameters that describe the reservoir. PARTNERS:
Pre-Impoundment
Country
Longitude of Dam (DD)
Reservoir Name
Restart Analysis with
a New Reservoir
UAS
User Guidelines
Warning:
Please never refresh the page with the Reload Page button of the browser.
This web page will disconnect automatically after 30 minutes of inactivity.
Possibilité d’utiliser G-res à
n’importe quel étape du projet
The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
Latitude of Dam (DD) Project specific information should be used.
Introduction Catchment Reservoir This may be
Reservoir obtained from
services current operations
Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
Climate Zone (Reservoir Area) or from feasibility studies.
For reservoirs that are expected to exhibit
Impoundment Year fluctuations in certain parameters depending
Online Technical Document Current Totals tCO2e/ yr
Reservoir Area (km2) Input Page 1/ 4 - Catchment Data on season or operating regime,forthe user
Catchment
should determine the 'typical' values and
– Étape de faisabilité:
Reservoir Volume (km3) then undertake a sensitivity analysis to Post-Impoundment
On this sheet, enter data on the land coverdetermine
types in the catchment
whether area and the
those variations reservoir
affect the area.
Water Level (m above sea level) ** To reset to automatically calculated value, press overall result. Pre-Impoundment
the reset button ( ) associated.
Maximum Depth (m) Catchment Area (km2) UAS
1) If Reservoir Area and Volume are available,
Mean Depth (m) 1 Mean Depth will be calculated.
Population in the Catchment (persons)
Littoral Area (%) 2 2) If Mean and Maximum Depth are available,
Catchment Annual Runoff (mm/yr) User Guidelines
Empreinte carbone
% Littoral Area will be calculated.
Thermocline Depth (m) 3
Community Wastewater Treatment - Please Select The user should select land cover data based
3) If Reservoir Area, Maximum Depth, Mean
Water Intake Depth (m) 4 Release of phosphorus from communityDepth, sewageAnnual
in the Wind Speed and Monthly on the most appropriate and relevant data for
catchment, if known (kg P /yr) Temperature are available, Thermocline the reservoir and catchment area.
Water Intake Elevation (m above sea level) User Notices
Industrial Depth will be calculated.
2
Impossible to estimate default Wastewater
value for Treatment - Please Select
Where land cover categories differ with the
Soil Carbon Content Under Impounded Area (kgC/m )
thermocline depth. Please fill.of phosphorus from industrial sewage in the
Release categories presented in the G-res Tool, the
4) If Mean/Normal Operating
0 Level and Water
acceptable
Wind value from Earth Engine? catchment, if known (kg P /yr) Intake Elevation are available, Water Intake user should rationalise the data being used
Depth will be calculated. into the same categories, and check that the
Annual Wind Speed (m/s) emission factors used in the G-res Tool are
Land Cover in the Catchment Area
% Land
5) If Reservoir Area, Mean Depth andUse Intensity applicable to those land cover types.
Water Residence Time (WRT, yrs) 5
Please choose units of inputs: Discharge are available, WRT 0%=
will NobeManaged Land
Annual Discharge from the Reservoir (m3/s) 6 calculated. 100%= All Heavily managed Land 'Intensity' is used to describe the level of
% km2 Past Current human influence on the land use as part of
Phosphorus Concentration (ug/L) 7 6) If reservoir Runoff and Catchment Area are
– Étape de conception:
Croplands 0 0 the UAS module. Broadly this means whether
available, Discharge will be calculated. for agriculure and forest it is heavily managed
Trophic Level
Bare Areas land, and for urban area whether the
7) If Catchment Land Cover, WRT, Discharge,
Reservoir Mean Global Horizontal Radiance (kWh/m2/d) population density is high. Sensitivity analysis
Population and Climate are available,
Wetlands is encouraged.
Phosphorus Concentration will be calculated.
Mean Temperature per Month (°C)
Introduction
Forest 0 0
January
February Grassland/Shrubland 0 0
March
April
May
June
Permanent Snow/Ice
Settlements
Water Bodies
0
Reset Catchment Land
0
User Notices
WARNING - Please be sure to add 0% to all land cover with no
value.
WARNING - Important contribution of organic soil, please validate
data with another source
Modification pour limiter les Alain Kilajian,
IHA
émissions
Drained Peatlands WARNING - Please validate if the organic Grassland/Shrubland is
July Cover Peatland instead
August No Data WARNING - Sum of % of catchment land cover is not equal to
September 100%
Sara Mercier-
Pre-Impoundment Land Cover in the Reservoir Area WARNING - Sum of % of land cover under impounded area is not
October
equal to 100%
Reservoir Area (km2)
November
Blais, UQAM
– Étape d’opération:
Next Input Page% of Organic % Past Land Use Intensity
December
Soil that is 0%=No Managed Land
Mean Annual Air Temperature (°C)
% Mineral Soil % Organic Soil Drained 100%= All Heavily managed Land % km2
Croplands ( ) 0
Bare Areas
Wetlands
(
(
)
)
User Guidelines
If River Area before Impoundment is
Discussion
Déclaration des émissions
unknown, please provide the length
Forest ( ) 0 between the river inlet and the dam, so
that River Area before Impoundment be
Grassland/Shrubland ( ) 0 calculated. This calculation does not
work in case of the presence of a lake Mot de la fin
Permanent Snow/Ice ( ) before the impoudment.
( ) 0
d’un projet
Settlements
River Area before River Length before
( )
Impoundment Impoundment (m)
Drained Peatlands
No Data
Edit Emission Factors
Reset Reservoir Land
Cover
Next Input PageUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Historique de l’outil G-res
Article sur Estimation mondiale
des GES des reservoirs dans
Global Biogeochemical Cycles
Début du projet de Première version de Lancement de
recherche UNESCO/IHA l’outil (MODEL-Risk l’outil G-res au G-res Article descriptif
sur l’état des GES des Assessment Tool – WHC en Ethiopie - Tool des modèles G-res
réservoirs d’eau douce Version bêta dans Excel) Disponible en ligne v2
G-res Tool v3
2006 2007 2010 2012 2015 2017 2018 2019 2021
CBI Hydropower Introduction
Article sur le Cycle Lignes directrices Première Première formation
criteria Alain Kilajian,
mondial du carbone des UNESCO/IHA pour la version bêta de officielle certifiée G- IHA
eaux intérieures dans mesure des GES pour l’outil G-res res tool
Sara Mercier-
Ecosystems les réservoirs d’eau présentée au Blais, UQAM
douce WHC en Chine
Article conceptuel Discussion
publié en Ecosystems Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Puissance surfacique et Intensité des émissions
Puissance surfacique (W/m2)
- Rapport entre la capacité installée et la surface
totale du réservoir
Intensité des émissions (gCO2e/kWh) Introduction
Alain Kilajian,
IHA
- Rapport entre les émissions nettes de GES et Sara Mercier-
Blais, UQAM
l’électricité produite Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Accès aux obligations vertes
Le critère d’éligibilité du Climate Bonds Initiative
(CBI) exige:
1. Une évaluation HESG officielle sans lacune
2. Une évaluation de GES si le projet a une
Introduction
puissance surfacique < 5 W/m2 pour des projets Alain Kilajian,
IHA
Sara Mercier-
existants (ou < 10 W/m2 pour des nouveaux Blais, UQAM
Discussion
Mot de la fin
projets)United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Étude de cas: Dibwangui, Gabon
Promoteur : FGIS/Eranove Group
Puissance installée : 15.4 MW
Étape de l’évaluation : Préparation
Date de l’évaluation : Septembre 2019 - Octobre 2020
Puissance surfacique : 19.15 W/m2
Intensité des émissions de GES : 30 gCO2e/kWh
Introduction
Rapport en Alain Kilajian,
IHA
français: Sara Mercier-
Blais, UQAM
https://www.hydr Discussion
osustainability.org Mot de la fin
/dibwanguiUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
395 réservoirs Intensité des émissions allouées (gCO2e/kWh) IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
>10 W/m2
Émissions considerées ZÉRO
Introduction
4 < W/m2 < 10 Alain Kilajian,
IHA
Émissions considerées 90 gCO2/kWh Sara Mercier-
Blais, UQAM
< 4 W/m2 Discussion
Inéligible Mot de la fin
395 réservoirs Intensité des émissions allouées (gCO2e/kWh) IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
Introduction
Alain Kilajian,
IHA
5 W/m2 Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
395 réservoirs Intensité des émissions allouées (gCO2e/kWh) IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Éolienne Hydro Solaire Gaz naturel Charbon
Médiane → 11 23 48 490 820
Puissance surfacique (W/m2)
Introduction
Alain Kilajian,
IHA
5 W/m2 Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
395 réservoirs Intensité des émissions allouées (gCO2e/kWh) IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
Puissance
surfacique
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
G-res Modélisation spécifique
Discussion
tool requise
Mot de la fin
395 réservoirs Intensité des émissions allouées (gCO2e/kWh) IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Intensité des émissions allouées (gCO2e/kWh)
395 réservoirs IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions de GES pour la production d’énergie
Puissance surfacique (W/m2)
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Intensité des émissions allouées (gCO2e/kWh)
395 réservoirs IHA 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Messages clés
L’hydroélectricité a une intensité d’émissions similaire à celle d’autres
énergies renouvelables.
Les émissions hydroélectriques proviennent principalement de la
transformation par les bactéries du carbone du sol inondé lors de la
création d’un reservoir. Introduction
Alain Kilajian,
IHA
Les deux seuils les plus importants pour l’hydroélectricité à retenir: Sara Mercier-
Blais, UQAM
- Puissance surfacique : > 5 W/m2 pour les projets existants et > 10 W/m2
Discussion
pour les nouveaux projets Mot de la fin
- Intensité des émissions : < 100 gCO2/kWh pour les projets existants et <
50 gCO2/kWh pour les nouveaux projetsUnited Nations UNESCO Chair in Université
Les milieux aquatiques sont extrêmement actifs en
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
terme d’émissions de GES
Évasion CO2 2.1
Terrestre 0.9 0.9 Océan 0.9 Océan
Terrestre 3.6
Cole, Prairie et al. 2007
0.6
Storage de sediment
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
GIEC 2007 GIEC 2013United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Transformation d’une rivière en réservoir
(A) Pre-impoundment
Pre-impoundment
emissions
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Introduction
Organic carbon
from river Alain Kilajian,
IHA
Lateral transport
Pelagic production Sara Mercier-
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Blais, UQAM
CO2 and CH4
CH4 oxidation at oxycline emissions
Thermocline Discussion
CH4 production
in anoxic water
and sediments Mot de la fin
Degradation of /looded organic matter
Prairie et al. 2017United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions pré-inondation
(A) Pre-impoundment
Pre-impoundment
emissions
Prairie et al. 2018
CO CH4' Introduction
(B) Post-impoundment
2'
CH4/CO2' Alain Kilajian,
IHA
New Diffusive emissions
Sara Mercier-
CO2 CH4
CH4 Blais, UQAM
bubbling Discussion
Forest'
Organic carbon
Wetlands' Mot de la fin
from river
River'
Lateral transport
Pelagic production
DegassiPre-impoundment
emissions
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Transformation d’une rivière en réservoir
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Organic carbon
from river
Lateral transport
Pelagic production Introduction
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Alain Kilajian,
CO2 and CH4 IHA
CH4 oxidation at oxycline emissions
Thermocline
CH4 production Sara Mercier-
in anoxic water Blais, UQAM
and sediments
Discussion
Degradation of /looded organic matter Mot de la fin
Prairie et al. 2018Pre-impoundment
emissions
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Mais qu’est-ce qui se passe réellement?
• Modification de la forme du système
• Modification de la couverture du terrain
• Post-impoundment
(B) Modification de l’hydrologie
New Diffusive emissions
CO2 CH4
CH4
bubbling
Organic carbon
from river
Lateral transport
Pelagic production Introduction
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Alain Kilajian,
CO2 and CH4 IHA
CH4 oxidation at oxycline emissions
Thermocline
CH4 production Sara Mercier-
in anoxic water Blais, UQAM
and sediments
Discussion
Degradation of /looded organic matter Mot de la fin
Prairie et al. 2018Pre-impoundment
emissions
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Mais qu’est-ce qui se passe réellement?
• Changement dans la stratification thermique
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Organic carbon
from river
Lateral transport
Pelagic production Introduction
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Alain Kilajian,
CO2 and CH4 IHA
CH4 oxidation at oxycline emissions
Thermocline
CH4 production Sara Mercier-
in anoxic water Blais, UQAM
and sediments
Discussion
Degradation of /looded organic matter Mot de la fin
Prairie et al. 2018Pre-impoundment
emissions
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Mais qu’est-ce qui se passe réellement?
• Plus de production de GES dans les sédiments, la colonne d’eau et la zone littorale
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Organic carbon
from river
Lateral transport
Pelagic production Introduction
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Alain Kilajian,
CO2 and CH4 IHA
CH4 oxidation at oxycline emissions
Thermocline
CH4 production Sara Mercier-
in anoxic water Blais, UQAM
and sediments
Discussion
Degradation of /looded organic matter Mot de la fin
Prairie et al. 2018Pre-impoundment
emissions
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Mais qu’est-ce qui se passe réellement?
• Plus d’émissions de GES
(B) Post-impoundment
New Diffusive emissions
CO2 CH4
CH4
bubbling
Organic carbon
from river
Lateral transport
Pelagic production Introduction
Benthic of CO2 and CH4 Degassing and
production of Sedimentation downstream Alain Kilajian,
CO2 and CH4 IHA
CH4 oxidation at oxycline emissions
Thermocline
CH4 production Sara Mercier-
in anoxic water Blais, UQAM
and sediments
Discussion
Degradation of /looded organic matter Mot de la fin
Prairie et al. 2018United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions diffusives de CO2 et de CH4
Diffusion
Ébullition
(CH4 + CO2)
(CH4)
Dégazage
(CH4) Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Concentration plus élevée dans l’eau = diffusion de l’eau à
l’atmosphère.United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions par ébulition de CH4
Diffusion
Ébullition
(CH4 + CO2)
(CH4)
Dégazage
(CH4) Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Production et accumulation de CH4 dans les sédiments.United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Émissions par dégazage du CH4
Diffusion
Ébullition
(CH4 + CO2)
(CH4)
Dégazage
(CH4) Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
GES provenant de la partie la plus profonde du réservoir
rejetée à la sortie du barrage.United Nations UNESCO Chair in Université
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ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Outil G-res
g-res.hydropower.org
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Revue de littérature
370 mesures pour 223 réservoirs provenant de 73 articles
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Couche globale en libre accès
1
Predictor Variables Units Source Supplemental information
Mean monthly and annual °C Global Climate database Average for the period 1950-2000
air temperature (Hijmans et al., 2005)
Climate zone (reservoir - Rubel and Kottek, 2010 Köppen- 4 categories compatible with the emission factor of
area) Geiger climate classification IPCC (2006): Tropical, Subtropical, Temperate, Boreal
-1
Annual precipitation mm yr Global Climate database Average for the period 1950-2000
(Hijmans et al., 2005)
Mean annual runoff mm yr-1 Fekete et al., 2000
Mean monthly and annual m s-1 NOAA, GLOBE Task Team et al.,
wind speed 1999
-1
Population density person km CIESIN, 2005
-2
Soil carbon content of the kgC m SoilGrids - global gridded soil Surface layer of the soil (30 cm) only Introduction
inundated catchment area information (Hengl et al., 2017) Alain Kilajian,
IHA
Land coverage % ESA-CCI 2014-2017 9 categories: Croplands, Forest, Grassland/Shrubland,
Wetlands, Settlements, Bare Areas, Water Bodies , Sara Mercier-
Blais, UQAM
Permanent Snow/Ice, No Data
Discussion
Reservoir mean global kWh m-2d-1 SSE (NASA 2008) See Appendix A.3. to convert to Cumulative global
-2 -1
horizontal radiance horizontal radiance (kWh m period ). Mot de la fin
+ Différents calculs utilisant des équations générales de la litératureUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Qu’est-ce qui est important pour les émissions de GES?
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Effet de l’age sur les émissions de GES
25° C
a) b)
50 G-res intègre sur une durée
25
CH4diffusive emissions (mg C m-2d-1)
45%
de vie de 100 ans
25° C
35%
40
Émissions de GES
20
25%
30
15 15%
20° C
20 Introduction
10
5%
Alain Kilajian,
15° C IHA
10 5 Sara Mercier-
10° C
Blais, UQAM
5°C
Discussion
0 0
0 25 50 75 100 0 25 50 75 Mot de la 100
fin
Age of reservoir Age of reservoir
Age du réservoirUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Effet de l’age sur les émissions de GES
Boréal Tropical
25° C
a) b)
50
25
CH4diffusive emissions (mg C m-2d-1)
45%
25° C
35%
40
Émissions de GES
20
25%
30
15 15%
20° C
20
10
Prairie et al. 2021 Introduction
5%
Alain Kilajian,
15° C IHA
10 5 Sara Mercier-
10° C
Blais, UQAM
5°C
Discussion
0 0
0 25 50 75 100 0 25 50 75 Mot de la 100
fin
Age of reservoir Age of reservoir
Age du réservoirUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Qu’est-ce qui est important pour les émissions de GES?
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Modèles CO2 et CH4 diffusif
Température
CO2 diffusif
Température Introduction
Alain Kilajian,
IHA
CH4 diffusif Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Prairie et al. 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Qu’est-ce qui est important pour les émissions de GES?
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Modèles CO2 et CH4 diffusif
Température Carbone dans le sol
CO2 diffusif
Température Aire de littoral
Introduction
Alain Kilajian,
IHA
CH4 diffusif Sara Mercier-
Blais, UQAM
Discussion
Mot de la fin
Prairie et al. 2021United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Empreinte nette de GES
Empreinte nette de GES
=
Émissions Post inondation
–
Émissions Pré inondation
– Allocation Introduction
Émissions issues de sources anthropiques non Alain Kilajian,
IHA
reliées (UAS) Sara Mercier-
Blais, UQAM
+ Discussion
Mot de la fin
Émissions issues de la constructionUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Outil G-res
Validate your Save Input Import Saved Printable Export to .txt Technical
Validate your Save Input Import Saved Printable Export to .txt Technical
Results Parameters Parameters Reports file Support
Results Parameters Parameters Reports file Support
For assessing and reporting the greenhouse
For assessing and reporting the greenhouse
gas emissions of a reservoir
PARTNERS: gas emissions of a reservoir
PARTNERS:
Reservoir Name
Reservoir Name
Warning:
Warning:
Restart Analysis with Please never refresh the page with the Reload Page button of the browser.
Restart Analysis with Please never refresh the page with the Reload Page button of the browser.
This web page will disconnect automatically after 30 minutes of inactivity.
a New Reservoir The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
This web page will disconnect automatically after 30 minutes of inactivity.
a New Reservoir The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
Introduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
Introduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
Online Technical Document Current Totals tCO2e/ yr
Input Page 2/ 4 - Reservoir Data Online Technical Document Current Totals tCO2e/ yr
for Reservoir Input Page 1/ 4 - Catchment Data for Catchment
Post-Impoundment
On this sheet, enter the key parameters that describe the reservoir. Post-Impoundment
Pre-Impoundment On this sheet, enter data on the land cover types in the catchment area and the reservoir area.
Pre-Impoundment
UAS
Catchment Area (km2) UAS
Population in the Catchment (persons)
Country Catchment Annual Runoff (mm/yr) User Guidelines
Longitude of Dam (DD) User Guidelines Community Wastewater Treatment - Please Select The user should select land cover data based
Latitude of Dam (DD) Project specific information should be used. Release of phosphorus from community sewage in the on the most appropriate and relevant data for
This may be obtained from current operations catchment, if known (kg P /yr) the reservoir and catchment area.
Climate Zone (Reservoir Area) or from feasibility studies. Industrial Wastewater Treatment - Please Select
For reservoirs that are expected to exhibit Where land cover categories differ with the
Impoundment Year fluctuations in certain parameters depending Release of phosphorus from industrial sewage in the categories presented in the G-res Tool, the
0
on season or operating regime, the user catchment, if known (kg P /yr) user should rationalise the data being used
Reservoir Area (km2)
should determine the 'typical' values and into the same categories, and check that the
Reservoir Volume (km3) then undertake a sensitivity analysis to Land Cover in the Catchment Area emission factors used in the G-res Tool are
% Land Use Intensity applicable to those land cover types.
determine whether those variations affect the
0%= No Managed Land
Water Level (m above sea level) ** To reset to automatically calculated value, press overall result. Please choose units of inputs:
100%= All Heavily managed Land 'Intensity' is used to describe the level of
the reset button ( ) associated.
Maximum Depth (m) 1) If Reservoir Area and Volume are available, % km2 Past Current human influence on the land use as part of
Mean Depth will be calculated. Croplands 0 0 the UAS module. Broadly this means whether
Mean Depth (m) 1
for agriculure and forest it is heavily managed
Littoral Area (%) 2 2) If Mean and Maximum Depth are available, Bare Areas land, and for urban area whether the
% Littoral Area will be calculated. population density is high. Sensitivity analysis
Thermocline Depth (m) 3 Wetlands is encouraged.
3) If Reservoir Area, Maximum Depth, Mean
Water Intake Depth (m) 4 Depth, Annual Wind Speed and Monthly Forest 0 0
Temperature are available, Thermocline
Water Intake Elevation (m above sea level) User Notices Grassland/Shrubland 0 0
Depth will be calculated.
Impossible to estimate default value for
Soil Carbon Content Under Impounded Area (kgC/m2) Permanent Snow/Ice
User Notices
thermocline depth. Please fill.
4) If Mean/Normal Operating Level and Water WARNING - Please be sure to add 0% to all land cover with no
Wind value from Earth Engine? Intake Elevation are available, Water Intake value.
Settlements 0 0
Depth will be calculated. WARNING - Important contribution of organic soil, please validate
Annual Wind Speed (m/s)
Water Bodies data with another source
5 5) If Reservoir Area, Mean Depth and
Introduction
Water Residence Time (WRT, yrs) Reset Catchment Land
Discharge are available, WRT will be Drained Peatlands WARNING - Please validate if the organic Grassland/Shrubland is
calculated. Cover Peatland instead
Annual Discharge from the Reservoir (m3/s) 6
No Data WARNING - Sum of % of catchment land cover is not equal to
Phosphorus Concentration (ug/L) 7 6) If reservoir Runoff and Catchment Area are 100%
available, Discharge will be calculated. Pre-Impoundment Land Cover in the Reservoir Area
Trophic Level WARNING - Sum of % of land cover under impounded area is not
Alain Kilajian,
equal to 100%
7) If Catchment Land Cover, WRT, Discharge, Reservoir Area (km2)
Reservoir Mean Global Horizontal Radiance (kWh/m2/d) Population and Climate are available,
% of Organic % Past Land Use Intensity
Phosphorus Concentration will be calculated.
IHA
Mean Temperature per Month (°C) Soil that is 0%=No Managed Land
January
% Mineral Soil % Organic Soil Drained 100%= All Heavily managed Land % km2
Croplands ( ) 0
February
March Bare Areas ( ) User Guidelines
Sara Mercier-
April Wetlands ( ) If River Area before Impoundment is
unknown, please provide the length
May Forest ( ) 0 between the river inlet and the dam, so
Blais, UQAM
June that River Area before Impoundment be
Grassland/Shrubland ( ) 0 calculated. This calculation does not
July work in case of the presence of a lake
Permanent Snow/Ice ( ) before the impoudment.
August
Settlements ( ) 0
September
October
November
River Area before
Impoundment
Drained Peatlands
( )
River Length before
Impoundment (m) Discussion
Next Input Page
December No Data
Mean Annual Air Temperature (°C)
Reset Reservoir Land
Edit Emission Factors Mot de la fin
Cover
Next Input PageRestart Analysis with This web page will disconnect automatically after 30 minutes of inactivity.
a New Reservoir The G-res Tool works only withWetlands This webbrowsers
the following supported page will: Safari
disconnect
10.x,automatically
Chrome 55 orafter 30Microsoft
later, minutes of inactivity.
Edge 38 or later. is encouraged.
a New Reservoir The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
Forest 0 0 Université
ntroduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine Educati
ona
United Nations
l
, Scienti
fica
nd
Cultural Organization
UNESCO Chair in
Global environmental
change
du Québec à Montréal
(Canada)
Introduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
Grassland/Shrubland 0 0
Input Page 1/ 4 - Catchment Data
Input Page 1/ 4 - Catchment Data
Outil G-res: Bassin versant et zone inondée
Online Technical Document
Online Technical Document
for Catchment
for Catchment
Permanent Snow/Ice
Settlements
Current
Current Totals
Totals tCOtCO 2e/ yr
2e/ yr
0 0
User Notices
WARNING - Please be sure to a
value.
Post-Impoundment WARNING - Important contribu
OnOn
this sheet, enter data on the land cover types in the catchment area and the reservoir area. Post-Impoundment
this sheet, enter data on the land cover types in the catchment area and the reservoir area. Water Bodies data with another source
Pre-Impoundment
Pre-Impoundment
Drained Peatlands Reset Catchment Land WARNING - Please validate if t
Catchment Area (km 2
) 2) UAS
UAS Cover
Catchment Area (km Peatland instead
Population in in
the Catchment No Data WARNING - Sum of % of catch
Population the Catchment(persons)
(persons)
100%
Catchment Annual
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Annual Runoff(mm/yr)
(mm/yr) Pre-Impoundment
User
User Land Cover in the Reservoir Area
Guidelines
Guidelines WARNING - Sum of % of land c
Community Wastewater Treatment equal to 100%
Community Wastewater Treatment- -Please
PleaseSelect
Select The
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land cover
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basedbased
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phosphorusfrom
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reservoir and
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area.
Soil that is 0%=No Managed Land
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for agriculure and forest it is heavily managed
Bare Areas Permanent
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Bare Areas land, and for urban area whether the
population density is high. Sensitivity analysis
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Forest 0 0 River Area before ( )
Forest 0 0 Impoundment
Grassland/Shrubland 0 0 Drained Peatlands
Grassland/Shrubland 0 0
User Notices
Permanent Snow/Ice No Data User Notices
Permanent Snow/Ice WARNING - Please be sure to add 0% to all land cover with no
WARNING - Please be sure to add 0% to all land cover with no
value.
Settlements 0 0
Settlements 0 0 value.
WARNING - Important contribution of organic soil, please validate
Water Bodies WARNING
data with another Reset Reservoir
- Important
source Land
contribution of organic soil, please validate
Water Bodies data with another source Cover
Reset Catchment Land WARNING - Please validate if the organic Grassland/Shrubland is
Drained Peatlands
Cover
Reset Catchment Land Peatland
WARNINGinstead
- Please validate if the organic Grassland/Shrubland is
Drained Peatlands
No Data Cover Peatland- instead
WARNING Sum of % of catchment land cover is not equal to
No Data 100%
WARNING - Sum of % of catchment land cover is not equal tothe reset butt
Maximum Depth (m)
oduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine Mean Depth (m) 1
United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Littoral Area (%) 2
Input Page 2/ 4 - Reservoir Data Outil G-res: Réservoir et climat
Online Technical Document
for Reservoir
Current Totals tCO2e/ yr Thermocline Depth (m) 3
Post-Impoundment Water Intake Depth (m) 4
On this sheet, enter the key parameters that describe the reservoir.
Pre-Impoundment Water Intake Elevation (m above sea level) User Notice
2
Impossible to
UAS Soil Carbon Content Under Impounded Area (kgC/m )
thermocline d
Wind value from Earth Engine?
Annual Wind Speed (m/s)
Country
Water Residence Time (WRT, yrs) 5
Longitude of Dam (DD) User Guidelines
Annual Discharge from the Reservoir (m3/s) 6
Latitude of Dam (DD) Project specific information should be used.
This may be obtainedPhosphorus
from current operations (ug/L) 7
Concentration
Climate Zone (Reservoir Area) or from feasibility studies.
For reservoirs that are expected to exhibit Trophic Level
Impoundment Year fluctuations in certain parameters depending
Reservoir Mean Global Horizontal Radiance (kWh/m2/d)
Reservoir Area (km2) on season or operating regime, the user
should determine the Mean'typical' valuesperand
Temperature Month (°C)
Reservoir Volume (km3) then undertake a sensitivity analysis to
January
determine whether those variations affect the
Water Level (m above sea level) ** To reset to automatically calculated value, press overall result. February
the reset button ( ) associated.
Maximum Depth (m) March
1) If Reservoir Area and Volume are available,
Mean Depth (m) 1 Mean Depth will be calculated. April
2) If Mean and Maximum Depth are Mayavailable,
Littoral Area (%) 2
% Littoral Area will be calculated.June
Thermocline Depth (m) 3
July Mean
3) If Reservoir Area, Maximum Depth,
Water Intake Depth (m) 4 Depth, Annual Wind Speed and Monthly
August
Temperature are available, Thermocline
Water Intake Elevation (m above sea level) User Notices
Depth will be calculated. September
Impossible to estimate default value for
Soil Carbon Content Under Impounded Area (kgC/m2)
thermocline depth. Please fill.
4) If Mean/Normal Operating LevelOctober
and Water
Wind value from Earth Engine? Intake Elevation are available, Water Intake
November
Depth will be calculated.
Annual Wind Speed (m/s) December
Water Residence Time (WRT, yrs) 5 5) If Reservoir Area, Mean Depth and
Discharge areMean Annual AirWRT
available, Temperature
will be(°C)
Annual Discharge from the Reservoir (m3/s) 6 calculated.United Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Variables d’entrée de base
Bassin versant
Population dans le bassin versant
Ruissellement annuel du bassin versant
Couverture des terres du bassin versant % (agriculture, sol nu, milieux humides, forêts,
prairies/arbustes, neige/glace permanente, milieux urbains, eau, tourbières drainées)
Aire du réservoir (Niveau moyen ou maximal d’exploitation)
Couverture des terres du réservoir avant mise en eau (Sol minéral et organique; agriculture, sol nu,
terres humides, forêts, prairies/arbustes, neige/glace permanente, milieux urbains, eau, tourbières
drainées) Introduction
Pays Alain Kilajian,
Zone climatique (Aire du réservoir) IHA
Profondeur maximale (La hauteur du barrage pourrait être utilisée comme indicateur de cette valeur) Sara Mercier-
Blais, UQAM
Volume du réservoir
Discussion
Contenu en carbone duans le sol de la zone inondée, 0-30 cm
Mot de la fin
Vitesse annuelle du vent
Irradiation globale horizontale moyenne du réservoir
Température moyenne mensuelle de l’airUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
Earth Engine pour les données manquantes
• Contour de bassin versant (en utilisant l’outil de dessin à la
main ou avec fichier shapefile)
• Coordonnée du barrage
• Altitude du barrage
Introduction
Alain Kilajian,
IHA
Sara Mercier-
Blais, UQAM
Discussion
Mot de la finUnited Nations UNESCO Chair in Université
Educati
ona l
, Scienti
fica
nd Global environmental du Québec à Montréal
Cultural Organization change (Canada)
L’outil G-res est disponible en ligne gratuitement, mais...
Validate your Save Input Import Saved Printable Export to .txt Technical
Results Parameters Parameters Reports file Support
For assessing and reporting the greenhouse
gas emissions of a reservoir
PARTNERS:
Reservoir Name
Warning:
Restart Analysis with Please never refresh the page with the Reload Page button of the browser.
This web page will disconnect automatically after 30 minutes of inactivity.
a New Reservoir The G-res Tool works only with the following supported browsers : Safari 10.x, Chrome 55 or later, Microsoft Edge 38 or later.
Introduction Catchment Reservoir Reservoir services Construction GHG UAS Reservoir GHG Total GHG footprint Emission Factors Earth Engine
G-res Tool G-res Tool - Introduction
g-res.hydropower.org
We strongly recommend to download and read the complete guidance here: User guide Technical Document Begin Data Input >
The G-res Tool provides an estimation of the level of net GHG footprint (CH4 and CO2) from freshwater existing and future reservoir through the following equation:
Net GHG Footprint = [ Post-Flooding Emissions ] - [ Pre-Flooding Emissions ] - [ Emissions from Unrelated Anthropogenic Sources (UAS) ]
The tool also includes the emissions from the construction phase. It also allocates the total emissions to the different purpose of the reservoir.
To use the tool, click the 'Begin Data Input' button. You will be directed to answer questions about the catchment, the reservoir, the purpose of the reservoir and the construction
phase through a series of input tabs.
The tool presents a summary results page including all emission sources and detailed calculation sheets which provides more information on some module.
If you are missing data about some aspect of your reservoir or its catchment, you may extract it by following the instructions in the “Earth Engine” tab.
Earth Engine
Introduction
Alain Kilajian,
Terms and Conditions
Your collaboration is always welcomed. Please send your questions, comments and suggestions to ghg@hydropower.org
IHA
For technical support, please contact techsupport@grestool.org
Sara Mercier-
Using this spreadsheet Blais, UQAM
Discussion
Cell key: Cells where the user MUST input data for the calculations.
Cells where the user may input data for the calculations.
Mot de la fin
Cells that are calculated automatically by the model.
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