#------------------------------------------------- WARNING -------------------------------------------- # # The data you have obtained from this automated Natural Resources Conservation Service # database are subject to revision regardless of indicated Quality Assurance level. # Data are released on condition that neither the NRCS nor the United States Government # may be held liable for any damages resulting from its use. # # SNOTEL air temperature data contains a known bias. This bias is rooted in the sensor # conversion equation and varies through the output range. Solutions are in development. # For more information go to Air Temperature Bias Correction. # # Help and Tutorials: https://www.nrcs.usda.gov/sites/default/files/2023-03/Report%20Generator%20Help%20Guide.pdf # Air Temperature Bias Correction: https://www.nrcs.usda.gov/wps/portal/wcc/home/snowClimateMonitoring/temperature/temperatureBiasCorrection/ # # Support Contact: usdafpacbc@servicenowservices.com # #------------------------------------------------------------------------------------------------------ # # Reporting Frequency: Hourly # Date Range: 2025-05-11 07:00 to 2025-05-14 06:00 # # Data for the following site(s) are contained in this file: # # SNOTEL 1055: Upper Tsaina River, AK # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Air Temperature Observed Value None Instantaneous N/A Degrees fahrenheit N/A TOBS Instantaneously observed air temperature # Precipitation Accumulation Value None Instantaneous N/A Inches N/A PREC Water year accumulated precipitation # Snow Water Equivalent Value None Instantaneous N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # Snow Depth Value None Instantaneous N/A Inches N/A SNWD Total snow depth # Relative Humidity Value None Instantaneous N/A Percent N/A RHUM Relative humidity # Solar Radiation Average Value None Hour N/A Watts/meter squared N/A SRADV Average solar radiation # # Quality Control flags included: # # Flag Name Description # V Valid Validated Data # N No Profile No profile for automated validation # E Edit Edit, minor adjustment for sensor noise # K Estimate Estimate # C Correction A different equation has been applied to the original sensor voltage # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # X External Estimate External estimate # S Suspect Suspect data # M Missing Value is missing # # Quality Assurance flags included: # # Flag Name Description # U Unknown Unknown # R Raw No Human Review # P Provisional Preliminary Human Review # A Approved Processing and Final Review Completed # #------------------------------------------------------------------------------------------------------ # # Upper Tsaina River (1055) # Alaska SNOTEL Site - 1730 ft # Reporting Frequency: Hourly; Date Range: 2025-05-11 07:00 to 2025-05-14 06:00 # # As of: May 14, 2025, 6:45:36 AM GMT-08:00 # Date,Air Temperature Observed (degF),Precipitation Accumulation (in),Snow Water Equivalent (in),Snow Depth (in),Relative Humidity (pct),Solar Radiation Average (watt/m2) 2025-05-11 07:00,34.0,26.60,16.0,42,74.00,198.50 2025-05-11 08:00,40.0,26.70,15.9,42,55.00,440.70 2025-05-11 09:00,43.0,26.70,15.8,41,49.00,508.50 2025-05-11 10:00,45.0,26.70,15.9,41,45.00,709.10 2025-05-11 11:00,47.0,26.70,15.9,41,44.00,770.90 2025-05-11 12:00,46.0,26.70,15.9,41,44.00,792.30 2025-05-11 13:00,49.0,26.70,15.9,41,40.00,776.30 2025-05-11 14:00,49.0,26.70,15.9,41,42.00,717.30 2025-05-11 15:00,49.0,26.70,15.9,40,41.00,630.70 2025-05-11 16:00,48.0,26.70,15.9,40,43.00,431.70 2025-05-11 17:00,47.0,26.70,15.8,40,45.00,301.50 2025-05-11 18:00,47.0,26.70,15.8,40,48.00,184.20 2025-05-11 19:00,44.0,26.70,15.7,40,54.00,71.56 2025-05-11 20:00,41.0,26.70,15.7,40,59.00,20.75 2025-05-11 21:00,38.0,26.70,15.6,40,68.00,1.88 2025-05-11 22:00,39.0,26.70,15.6,40,66.00,0.02 2025-05-11 23:00,38.0,26.70,15.6,40,67.00,0.06 2025-05-12 00:00,42.0,26.60,15.5,40,54.00,0.07 2025-05-12 01:00,43.0,26.70,15.5,40,54.00,0.10 2025-05-12 02:00,41.0,26.70,15.5,40,59.00,0.07 2025-05-12 03:00,41.0,26.70,15.5,40,59.00,0.32 2025-05-12 04:00,41.0,26.70,15.4,40,61.00,6.61 2025-05-12 05:00,41.0,26.70,15.4,40,60.00,22.18 2025-05-12 06:00,39.0,26.70,15.4,40,69.00,61.43 2025-05-12 07:00,39.0,26.70,15.4,40,75.00,111.60 2025-05-12 08:00,39.0,26.70,15.4,40,72.00,163.70 2025-05-12 09:00,39.0,26.70,15.4,40,73.00,239.80 2025-05-12 10:00,41.0,26.70,15.4,40,69.00,373.50 2025-05-12 11:00,41.0,26.70,15.4,40,71.00,400.60 2025-05-12 12:00,41.0,26.70,15.4,40,69.00,365.00 2025-05-12 13:00,40.0,26.70,15.4,40,70.00,309.30 2025-05-12 14:00,40.0,26.70,15.4,40,74.00,300.90 2025-05-12 15:00,41.0,26.70,15.4,39,73.00,219.90 2025-05-12 16:00,40.0,26.70,15.4,39,76.00,192.60 2025-05-12 17:00,38.0,26.70,15.3,39,83.00,145.70 2025-05-12 18:00,38.0,26.70,15.3,39,82.00,76.56 2025-05-12 19:00,38.0,26.70,15.3,39,84.00,38.62 2025-05-12 20:00,36.0,26.70,15.3,39,89.00,11.61 2025-05-12 21:00,35.0,26.70,15.2,39,90.00,1.71 2025-05-12 22:00,34.0,26.70,15.2,39,92.00,0.02 2025-05-12 23:00,36.0,26.70,15.2,39,80.00,0.00 2025-05-13 00:00,37.0,26.70,15.2,39,76.00,0.00 2025-05-13 01:00,36.0,26.70,15.2,39,78.00,0.00 2025-05-13 02:00,36.0,26.70,15.1,39,79.00,0.00 2025-05-13 03:00,36.0,26.70,15.1,39,83.00,0.48 2025-05-13 04:00,35.0,26.70,15.1,39,83.00,15.59 2025-05-13 05:00,35.0,26.70,15.1,39,84.00,67.88 2025-05-13 06:00,36.0,26.70,15.1,39,84.00,91.10 2025-05-13 07:00,36.0,26.70,15.1,39,84.00,193.50 2025-05-13 08:00,38.0,26.70,15.1,39,78.00,442.30 2025-05-13 09:00,39.0,26.70,15.0,39,70.00,487.60 2025-05-13 10:00,41.0,26.70,15.0,39,69.00,772.10 2025-05-13 11:00,42.0,26.70,15.0,39,66.00,726.70 2025-05-13 12:00,41.0,26.70,15.0,38,67.00,800.00 2025-05-13 13:00,43.0,26.70,15.0,38,60.00,779.00 2025-05-13 14:00,44.0,26.70,15.0,38,61.00,748.30 2025-05-13 15:00,44.0,26.70,15.0,38,58.00,582.30 2025-05-13 16:00,43.0,26.70,14.9,37,65.00,396.20 2025-05-13 17:00,43.0,26.70,14.9,37,61.00,287.50 2025-05-13 18:00,42.0,26.70,14.8,37,66.00,206.30 2025-05-13 19:00,43.0,26.70,14.8,37,63.00,132.90 2025-05-13 20:00,40.0,26.70,14.7,37,71.00,22.63 2025-05-13 21:00,39.0,26.70,14.6,37,77.00,2.47 2025-05-13 22:00,38.0,26.70,14.6,37,78.00,0.04 2025-05-13 23:00,37.0,26.70,14.6,37,79.00,0.07 2025-05-14 00:00,39.0,26.70,14.5,37,77.00,0.04 2025-05-14 01:00,38.0,26.70,14.5,37,79.00,0.06 2025-05-14 02:00,37.0,26.70,14.5,37,85.00,0.01 2025-05-14 03:00,37.0,26.70,14.5,37,79.00,0.94 2025-05-14 04:00,37.0,26.70,14.4,37,77.00,24.09 2025-05-14 05:00,36.0,26.70,14.4,37,81.00,