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Additional SWE Resources |
This site contains links to data collected from field measurements of the spatial distribution of SWE in seasonally snow-covered regions. Use the resources listed in the following table to compare data archives and find relevant data.
Snow water equivalent can be presented in units of kg/m2 or meters of depth of liquid water that would result from melting the snow. SWE is the product of depth and density:
SWE = depth (m) x density (kg/m3) (units: kg/m2)
SWE = depth (m) x density (kg/m3) / density of water (kg/m3) (units: m)
To submit a data link or for questions about this site, please contact NSIDC User Services.
NSIDC is not responsible for the quality of data held elsewhere.
| Data Description and Location | Data Links | |
|---|---|---|
![]() Image courtesy of Thomas Painter, NSIDC |
Emerald Lake/Tokopah Basin, CaliforniaThese data were collected during the 1997 and 1998 ablation seasons (April - June). Snow depth was sampled on a 240 m grid over the 1900 hectare Tokopah Basin, Sequoia National Park, California. Snow density was sampled in snow pits distributed randomly around the basin. Some of the surveys contain direct measurements of snow water equivalence made with Federal (Mt. Rose) samplers. |
Tokopah Basin |
Image courtesy of Niwot LTER |
Green Lakes Valley, ColoradoThese data were collected near maximum accumulation (mid-May) during each ablation season between 1997 and 2003. The study area is in the 2.25 km2 Green Lake Valley, adjacent to the Niwot Ridge Long Term Ecological Research (LTER) study area in Colorado, USA. Snow depth was sampled on an approximate 50 m grid with locations estimated from a topographic map (1997) or obtained using GPS (1998-2003). Snow density was sampled in snow pits distributed around the basin. |
Snow depths 1997 1998 1999 2000 2001 2002 2003 Snowpits data description (does not include 2003) |
![]() Image courtesy of Thomas Painter, NSIDC |
BOREAS: Saskatchewan/Manitoba, CanadaThe BOREAS HYD-03 team collected several data sets related to the hydrology of forested areas. This data set contains measurements of snow depth, snow density in three cm intervals, an integrated snow pack density and SWE, and snow pack physical properties from snow pit evaluation taken in 1994 and 1996. The data were collected from several sites in both the SSA and the NSA. |
BOREAS HYD-03 Standard Snow Course Data BOREAS HYD-04 Standard Snow Course Data |
![]() Image courtesy of CLPX, NSIDC |
Cold Lands Processes Experiment (CLPX)The experiment was conducted in the central Rocky Mountains of Colorado, in the western United States. Large physiographic gradients provided a rich array of different terrain, snow, soil, and ecological characteristics to examine. Intensive ground, airborne, and spaceborne observations were collected. Data collection focused on two seasons: mid-winter, when conditions are generally frozen and dry, and early spring, a transitional period when both frozen and thawed, dry and wet conditions are widespread. |
NSIDC's CLPX Site |
![]() Image courtesy of UCSB |
Mammoth Mountain Cooperative Snow Study SiteThese data were acquired from snowpits dug at the Mammoth Mountain Energy Balance Monitoring site. Depth and snow-water-equivalent data were recorded. Data were acquired from snowpits dug at the Mammoth Mountain Energy Balance Monitoring site. Depth and snow-water-equivalent data were recorded. |
Mammoth Mountain Snowpit Data |
![]() Image courtesy of Hubbard Brook LTER |
Hubbard Brook, VermontSnow course data have been collected approximately weekly at a network of standard rain gages at the Hubbard Brook Experimental Forest from 1956 to the present when there was snow on the ground. |
Hubbard Brook LTER |
![]() Image courtesy of USGS |
Sleeper's Creek, VermontWaters sampled include precipitation, snow pack, snow melt water (from snow melt lysimeters), zero-tension soil water (three depths), ground water (many depths), and stream water (seven sites). |
Water Resources of New Hampshire and Vermont |
![]() Image courtesy of USDA |
Reynolds Creek Experimental WatershedSnow water equivalence was measured at eight locations in the Reynolds Creek Experimental Watershed every two weeks throughout the snow season (December 1 to June 1) for 35 years (1962-1996). |
Reynolds Creek Data Archive |