USDA Snowpack Telemetry Network (SNOTEL)

is an automated system of snowpack and related climate sensors primarily in mountainous regions in the Western United States which aims to collect data like snow water equivalent, accumulated precipitation, and air temperature. This is a proxy of the SNOTEL API into the OGC API EDR format.

EDR SNOTEL NRCS USDA

Data Queries

*Note: EDR Queries may require query parameters not provided in the Query Location.*
Query Name	Query Location
locations	https://api.wwdh.internetofwater.app/collections/snotel-edr/locations
cube	https://api.wwdh.internetofwater.app/collections/snotel-edr/cube
area	https://api.wwdh.internetofwater.app/collections/snotel-edr/area
items	https://api.wwdh.internetofwater.app/collections/snotel-edr/items

Parameter Groups

Weather Data (30 matches)

id	name	units
TAVG	Air Temperature Average Average Air Temperature - Sub-Hourly Sampling Frequency	degF
TMAX	Air Temperature Maximum SNOTEL definition: Maximum Air Temperature - Sub-Hourly Sampling Frequency	degF
TMIN	Air Temperature Minimum SNOTEL definition: Minimum Air Temperature - Sub-Hourly Sampling Frequency	degF
TOBS	Air Temperature Observed SNOTEL definition: Instantaneously Observed Air Temperature	degF
PRES	Barometric Pressure Barometric Pressure	inch_Hg
DPTP	Dew Point Temperature Dew Point Temperature of the Air	degF
TGSV	Ground Surface Interface Temperature Average ground surf inter temp	degF
TGSX	Ground Surface Interface Temperature Maximum ground surf inter temp	degF
TGSN	Minimum ground surface temperature ground surf inter temp	degF
TGSI	Ground surface temperature (observed) ground surf inter temp	degF
AWDC	Leaf Wetness Duration Duration of time that leaf surfaces remain wet due to precipitation, dew, or fog during the observation period.	min
RHUM	Relative Humidity Relative Humidity	pct
RHUMV	Relative Humidity Average Average Relative Humidity	pct
RHENC	Relative Humidity Enclosure Relative Humidity of Datalogger Enclosure	pct
RHUMX	Maximum Relative Humidity Maximum Relative Humidity	pct
RHUMN	Minimum Relative Humidity Minimum Relative Humidity	pct
OI	Teleconnection Index Teleconnection Index	unitless
PVPV	Vapor Pressure - Partial Partial Vapor Pressure	kPa
SVPV	Vapor Pressure - Saturated Saturated Vapor Pressure	kPa
WDIRV	Average Wind Direction Average Wind Direction	degree
WDIR	Wind Direction Observed wind direction	degree
WDIRZ	Wind Direction Standard Deviation Standard Deviation of Wind Direction	degree
WDMVV	Wind Movement Average wind movement	mile
WDMVX	Wind Movement Maximum wind movement	mile
WDMV	Wind Movement Observed wind movement	mile
WDMVT	Wind Movement Total Total Wind Movement	mile
WSPDV	Wind Speed Average Average Wind Speed	mph
WSPDX	Wind Speed Maximum Maximum Wind Speed	mph
WSPDN	Wind Speed Minimum wind speed	mph
WSPD	Wind Speed Observed wind speed	mph

Equipment (7 matches)

id	name	units
BATT	Battery Battery Voltage	volt
BATV	Battery Average battery	volt
BATX	Battery Maximum Maximum Battery Voltage	volt
BATN	Battery Minimum Minimum Battery Voltage	volt
ETIB	Battery-ETI Precip Guage battery-eti precip guage	volt
VOLT	Generic Voltage generic voltage	volt
RHENC	Relative Humidity Enclosure Relative Humidity of Datalogger Enclosure	pct

Electrical Conductivity (1 matches)

id	name	units
COND	Electrical Conductivity Soil Conductivity	umho

Streamflow (current/historical) (5 matches)

id	name	units
SRDOX	Discharge Manual/External Adjusted Mean Streamflow Discharge adjusted for significant human regulation. Non-NRCS adjustment calculations	cfs
SRDOO	River Discharge Observed Mean Average Observed Streamflow Discharge	cfs
SRVO	Stream Volume, Adjusted Streamflow Volume adjusted for significant human regulation where data are available	ac_ft
SRVOX	Stream Volume, Adjusted External Streamflow Volume adjusted for significant human regulation. Non-NRCS adjustment calculations	ac_ft
SRVOO	Stream Volume, Observed Observed Streamflow Volume	ac_ft

Inorganic Analytes (2 matches)

id	name	units
DISO	Dissolved Oxygen dissolved oxygen	mgram/l
DISP	Dissolved Oxygen - Percent Saturation dissolved oxygen percent saturation	pct

Channel Diversion (2 matches)

id	name	units
DIVD	Diversion Discharge Observed Mean Mean Observed Diversion Discharge	cfs
DIV	Diversion Flow Volume Observed Observed Diversion Volume	ac_ft

Irradiance (18 matches)

id	name	units
HFTV	Ground heat flux Energy Gain Or Loss From Ground	watt/m2
NTRDV	Net Solar Radiation Average Average Net Solar Radiation	watt/m2
NTRDX	Net Solar Radiation Maximum solar radiation - net	watt/m2
NTRDN	Net Solar Radiation Minimum solar radiation - net	watt/m2
NTRDC	Net Solar Radiation Observed solar radiation - net	watt/m2
PARV	Photosynthetically Active Radiation (PAR) Average Average Photosynthetically Active Radiation	micromole/m2/s
LWINV	Radiation Incoming Longwave Average Incoming Longwave Radiation Average	watt/m2
SWINV	Radiation Incoming Shortwave Average Incoming Shortwave Radiation Average	watt/m2
LWOTV	Radiation Outgoing Longwave Average Outgoing Longwave Radiation Average	watt/m2
SWOTV	Radiation Outgoing Shortwave Average Outgoing Shortwave Radiation Average	watt/m2
SRAD	Solar Radiation solar radiation - total	watt/m2
SRADV	Solar Radiation Average solar radiation - total	watt/m2
SRADX	Solar Radiation Maximum Maximum Solar Radiation	watt/m2
SRADN	Solar Radiation Minimum Minimum Solar Radiation	watt/m2
SRADT	Solar Radiation Total solar radiation - total	watt/m2
LRAD	Solar Radiation/Langley solar radiation - accumulated	langley
LRADX	Solar Radiation/Langley Maximum solar radiation - accumulated	langley
LRADT	Solar Radiation/Langley Total Total Solar Radiation	langley

Evaporation (1 matches)

id	name	units
EVAP	Evaporation evaporation	in

Wildfire Risk (2 matches)

id	name	units
FUEL	Fuel Moisture fuel moisture	pct
FMTMP	Internal Fuel Temperature fuel temperature internal	degF

Physical Analytes (3 matches)

id	name	units
H2OPH	pH ph	unitless
SAL	Salinity Soil Salinity	gram/l
TURB	Turbidity turbidity	ntu

Precipitation (4 matches)

id	name	units
PREC	Precipitation Accumulation Water Year Accumulated Precipitation	in
PRCP	Precipitation Increment Total Precipitation	in
PRCPMTD	Precipitation Month-to-date Month-to-date Precipitation	in
ETIL	Precipitation (ETI) pulse line monitor-eti guage	volt

Snow (17 matches)

id	name	units
PRCPSA	Precipitation Increment - Snow-Adj Snow Adjusted Total Preciptation	in
PTEMP	Profile Temperature Temperature Profile	degF
RDC	Dielectric Constant Real Dielectric Constant of Soil	unitless
SNDN	Snow Density The mass of snow per unit volume, expressed as a percent of water content	pct
SNWD	Snow Depth Total Snow Depth	in
SNWDV	Snow Depth Average Average Snow Depth -daily (start of day) sampling frequency, serially complete data required	in
SNWDX	Snow Depth Maximum Maximum Snow Depth -daily (start of day) sampling frequency, serially complete data required	in
SNWDN	Snow Depth Minimum Minimum Snow Depth -daily (start of day) sampling frequency, serially complete data required	in
SNRR	Snow Rain Ratio Daily or sum of daily snow water equivalent increases as pct of total precip for the same period	unitless
STEMP	Snow Temperature Observed Snow Temperature	degF
STAVG	Snow Temperature Average Average Snow Temperature	degF
STMAX	Snow Temperature Maximum Maximum Snow Temperature	degF
STMIN	Snow Temperature Minimum Minimum Snow Temperature	degF
WTEQ	Snow Water Equivalent Depth of water that would theoretically result if the entire snowpack were melted instantaneously	in
WTEQV	Snow Water Equivalent Average SNOTEL definition: Average Snow Water Equivalent - daily sampling frequency, serially complete data required	in
WTEQX	Snow Water Equivalent Maximum SNOTEL definition: Maximum Snow Water Equivalent - daily sampling frequency, serially complete data required	in
WTEQN	Snow Water Equivalent Minimum Minimum Snow Water Equivalent - daily sampling frequency, serially complete data required	in

Lake/Reservoir Elevation (2 matches)

id	name	units
REST	Reservoir Stage Reservoir Stage	ft
RESTD	Reservoir Stage Delta Change in reservoir stage over duration	ft

Lake/Reservoir Storage (2 matches)

id	name	units
RESC	Reservoir Storage Volume Reservoir Storage Volume	ac_ft
RESA	Usable Lake Storage Volume Usable or active space occupied, as measured by cubic units, by water in a lake.	ac_ft

Soil (8 matches)

id	name	units
SMS	Soil Moisture Percent Percent Volumetric Soil Moisture	pct
SMV	Soil Moisture Percent Average Average Percent Soil Moisture by Volume - hourly sampling frequency, serially complete data required	pct
SMX	Soil Moisture Percent Maximum Maximum Percent Soil Moisture by Volume - hourly sampling frequency, serially complete data required	pct
SMN	Soil Moisture Percent Minimum Minimum Percent Soil Moisture by Volume - hourly sampling frequency, serially complete data required	pct
STV	Soil Temperature Average Average Soil Temperature based on hourly sampling frequency; serially complete data required	degF
STX	Soil Temperature Maximum Maximum Soil Temperature based on hourly sampling frequency; serially complete data required	degF
STN	Soil Temperature Minimum Maximum Soil Temperature based on hourly sampling frequency; serially complete data required	degF
STO	Soil Temperature Observed Observed Soil Temperature	degF

Stream Stage / Gage Height (current/historical) (4 matches)

id	name	units
SRMV	Average Stream Stage Average Stream Stage	ft
SRMX	Maximum Stream Stage Maximum Stream Stage	ft
SRMN	Minimum Stream Stage Minimum Stream Stage	ft
SRMO	Observed Stream Stage Observed Stream Stage	ft

River Characteristics (4 matches)

id	name	units
WLEVV	Water Level Average water level	in
WLEVX	Water Level Maximum water level	in
WLEVN	Water Level Minimum water level	in
WLEV	Water Level Observed water level	in

Water Temperature (4 matches)

id	name	units
WTEMP	Water Temperature Observed Water Temperature	degF
WTAVG	Water Temperature Average Average Water Temperature	degF
WTMAX	Water Temperature Maximum Maximum Water Temperature	degF
WTMIN	Water Temperature Minimum Minimum Water Temperature	degF

Groundwater (1 matches)

id	name	units
WELL	Well Depth well depth	ft

USDA Snowpack Telemetry Network (SNOTEL)

Data Queries

Parameter Groups

Links