{"id":"gra2pes-ghg-monthgrid-v1","type":"Collection","links":[{"rel":"items","type":"application/geo+json","href":"https://earth.gov/ghgcenter/api/stac/collections/gra2pes-ghg-monthgrid-v1/items"},{"rel":"parent","type":"application/json","href":"https://earth.gov/ghgcenter/api/stac/"},{"rel":"root","type":"application/json","href":"https://earth.gov/ghgcenter/api/stac/"},{"rel":"self","type":"application/json","href":"https://earth.gov/ghgcenter/api/stac/collections/gra2pes-ghg-monthgrid-v1"},{"rel":"http://www.opengis.net/def/rel/ogc/1.0/queryables","type":"application/schema+json","title":"Queryables","href":"https://earth.gov/ghgcenter/api/stac/collections/gra2pes-ghg-monthgrid-v1/queryables"}],"title":"GRA²PES Greenhouse Gas and Air Quality Species v1","extent":{"spatial":{"bbox":[[-128.22655,47.89015278,-65.30824167,22.85824167]]},"temporal":{"interval":[["2021-01-01T00:00:00+00:00","2021-12-31T00:00:00+00:00"]]}},"license":"CC-BY-NC-4.0","renders":{"co":{"assets":["co"],"rescale":[[0,2]],"colormap_name":"spectral_r"},"nox":{"assets":["nox"],"rescale":[[0,2]],"colormap_name":"greens"},"so2":{"assets":["so2"],"rescale":[[0,0.5]],"colormap_name":"blues"},"pm25":{"assets":["pm25"],"rescale":[[0,0.2]],"colormap_name":"purples"},"dashboard":{"assets":["co2"],"rescale":[[0,2000]],"colormap_name":"spectral_r"}},"providers":[{"url":"Colin.harkins@noaa.gov","name":"Colin Harkins","roles":["producer","licensor"]}],"description":"The Greenhouse gas And Air Pollutants Emissions System (GRA²PES) dataset at the GHG Center is an aggregated, regridded, monthly high-resolution (0.036 x 0.036°) data product with emissions of both greenhouse gases and air pollutants developed in a consistent framework. The dataset contains emissions over the contiguous United States covering major anthropogenic sectors, including energy, industrial fuel combustion and processes, commercial and residential combustion, oil and gas production, on-road and off-road transportation, etc. Carbon dioxide (CO₂) emissions are developed along with those of air pollutants including CO, NOₓ, SO₂, and PM2.5 with consistency in spatial and temporal distributions. Emissions by sectors are reported as column totals in units of metric tons per km² per month. Spatial-temporal surrogates are developed to distribute CO₂ emissions to grid cells to keep consistency between greenhouse gases and air quality species. The current version of GRA²PES is for 2021. Long-term emissions and more greenhouse gas species (e.g., methane) are under development and will be added in the future. Description of data processing: Derived from wrfchem_d01 files. Totaled in Z space; native 12-hour (00z and 12z) files averaged to get mean daily emissions; weighted average calculated using weekdy, sundy, satdy to produce average emissions rates for given month. Regridded from native LCC projection and 4000m resolution to EPSG 4326. The native dataset can be accessed from the NIST data center: https://doi.org/10.18434/mds2-3520","item_assets":{"co":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","layer"],"title":"CO Emissions","description":"Estimated monthly total carbon monoxide (CO) emissions across all sectors."},"co2":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","layer"],"title":"CO₂ Emissions","description":"Estimated monthly total CO₂ emissions across all sectors."},"nox":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","layer"],"title":"NOₓ Emissions","description":"Estimated monthly total nitrogen oxide (NOₓ) emissions across all sectors."},"so2":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","layer"],"title":"SO₂ Emissions","description":"Estimated monthly total sulfur dioxide (SO₂) emissions across all sectors."},"pm25":{"type":"image/tiff; application=geotiff; profile=cloud-optimized","roles":["data","layer"],"title":"Particulate Matter (PM2.5)","description":"Estimated monthly total emissions of fine particulate matter (PM2.5) across all sectors."}},"stac_version":"1.0.0","stac_extensions":["https://stac-extensions.github.io/render/v1.0.0/schema.json","https://stac-extensions.github.io/item-assets/v1.0.0/schema.json"],"dashboard:is_periodic":true,"dashboard:time_density":"month"}