Global-Gridded Daily Methane Emissions from Inland Dam-Reservoir Systems, 2002-2015

Johnson, Matthew S.; Matthews, E.; Bastviken, D.; Deember, B.; Du, J.; Genovese, V.

This dataset includes global maps of methane (CH4) emissions from inland dam-reservoir systems at 0.25-degree spatial resolution. Daily emission rates (as grams of CH4 per day per total area of grid cell) were estimated for boreal, temperate, and subtropical-tropical eco-climatic domains and total emissions. The annual duration of the emission season is based on freeze-thaw cycles of these water bodies as applicable. In addition, the dataset includes the total fractional area of reservoirs in each grid cell. These estimates will promote understanding of the current and future role of reservoirs in the global CH4 budget and guide efforts to mitigate reservoir-related CH4 emissions. These emission estimates are climatological; one daily value for each day of year (n=365) is provided for each grid cell. Modeled estimates were based on daily mean inputs, averaged over 2002 to 2015.

Citation

In order to use these data, you must cite this data set with the following citation:

Johnson, M. S. et al. (2021). Spatiotemporal methane emission from global reservoirs. Journal of Geophysical Research: Biogeosciences, 126, e2021JG006305. https://doi.org/10.1029/2021JG006305

This dataset is openly shared, without restriction, in accordance with the EOSDIS Data Use Policy.

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ORNL DAAC

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Data and Resources

Additional Info

Field Value
Identifier DOI: 10.3334/ORNLDAAC/1918
Project(s)
Institute NASA Ames Research Center
Source https://doi.org/10.3334/ORNLDAAC/1918
Publication Date 2021-08-13
Version 1.0
Product global maps of methane emissions from inland dam-reservoir systems at 0.25-degree spatial resolution
Sensor Data product derived from existing datasets of in-situ fluxes, reservoir distribution and reservoir surface area
Files
  1. Reservoir Area
  2. Reservoir Methane Emissions
Variables [Units]
  1. total_fraction: Area fraction of reservoirs in grid cell
  2. total_area: Total area of reservoirs in grid cell [m2]
  3. boreal_area: Total area of reservoirs in grid cell in boreal eco-climatic zones [m2]
  4. temperate_area: Total area of reservoirs in grid cell in temperate eco-climatic zones [m2]
  5. tropical_subtropical_area: Total area of reservoirs in grid cell in tropical and subtropical eco-climatic zones [m2]
  6. emission_season: Duration of annual emission season in days [d]
  7. total_emission_rate: Daily rate of methane emissions from reservoirs in grid cell [g m-2 d-1]
  8. boreal_emission_rate: Daily rate of methane emissions from reservoirs in grid cell [g m-2 d-1]
  9. temperate_emission_rate: Daily rate of methane emissions from reservoirs in grid cell [g m-2 d-1]
  10. tropical_subtropical_emission_rate: Daily rate of methane emissions from reservoirs in grid cell [g m-2 d-1]
Region Global
Spatial Reference
Spatial Resolution 0.25°
Spatial Coverage Latitude -90.00 to 90.00, Longitude -180.00 to 180.00
Temporal Coverage 2002-2015
Temporal Resolution Daily
Format NetCDF
Is Supplement To

Johnson, M. S. et al. (2021). Spatiotemporal methane emission from global reservoirs. Journal of Geophysical Research: Biogeosciences, 126, e2021JG006305. https://doi.org/10.1029/2021JG006305
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