Filters: Tags: Conterminous U.S. (X) > Extensions: Raster (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Types Downloadable (1) GeoTIFF (1) Map Service (1) Raster (1) Contacts Oklahoma-Texas Water Science Center Public Information Officer Oklahoma-Texas Water Science Center U.S. Geological Survey Tanya J Gallegos Victoria G Stengel More... Categories Data (1) Tag Types Theme (1) Harvest Set (1) USGS Scientific Topic Keyword (1) Tag Schemes USGS Thesaurus (1) View Results as: JSON ATOM CSV

Conterminous U.S. Air Stagnation Index, Number of Days, 2007–2016 Using the National Oceanic Atmospheric Administration’s (NOAA) Air Stagnation Index (ASI), the total number of days during 2007–2016 with atmospheric conditions conducive for stagnant air conditions in the conterminous U.S. are documented in raster format geospatial data. These data provide the number of days that would allow the temporal buildup of atmospheric pollution (NOAA, 2017). NOAA provides ASI data on a monthly basis based on a modified version of Wang and Angell’s (1999) algorithm. The air stagnation index criteria are defined as sea level geostrophic wind less than 8m/sec (meters per second) (if there is a temperature inversion below 850mb (millibars), then less than 10 m/sec), 500 mb wind less than 13m/sec,... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, Raster; Tags: Air stagnation, Atmosphere, Climatology, Conterminous U.S., Energy Resources, All tags... Geospatial datasets, Meteorology, USGS Science Data Catalog (SDC), Fewer tags