#------------------------------------------------- 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: 2024-10-01 13:00 to 2024-10-04 12:00 # # Data for the following site(s) are contained in this file: # # SNOTEL 641: Frostbite Bottom, 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 # Wind Speed Maximum Value None Hour N/A Miles/hour N/A WSPDX Maximum wind speed # Wind Speed Average Value None Hour N/A Miles/hour N/A WSPDV Average wind speed # Wind Direction Average Value None Hour N/A Degrees N/A WDIRV Average wind direction # # 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 # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # K Estimate Estimate # X External Estimate External estimate # S Suspect Suspect data # # 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 # #------------------------------------------------------------------------------------------------------ # # Frostbite Bottom (641) # Alaska SNOTEL Site - 2700 ft # Reporting Frequency: Hourly; Date Range: 2024-10-01 13:00 to 2024-10-04 12:00 # # As of: Oct 4, 2024, 12:39:38 PM 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),Wind Speed Maximum (mph),Wind Speed Average (mph),Wind Direction Average (degree) 2024-10-01 13:00,42.0,0.0,0.2,,420.00,133.80,3.9,7.4,3 2024-10-01 14:00,41.0,0.0,0.2,,374.00,134.10,3.8,7.1,3 2024-10-01 15:00,42.0,0.0,0.2,,149.00,134.00,3.8,5.6,3 2024-10-01 16:00,40.0,0.0,0.2,,200.00,133.80,3.8,4.8,2 2024-10-01 17:00,37.0,0.0,0.2,,64.00,133.80,3.8,6.5,3 2024-10-01 18:00,34.0,0.0,0.2,,32.00,133.70,3.8,6.0,4 2024-10-01 19:00,34.0,0.0,0.2,,4.00,134.10,3.8,6.9,4 2024-10-01 20:00,32.0,0.0,0.2,,0.00,133.80,3.8,5.9,4 2024-10-01 21:00,31.0,0.0,0.2,,0.00,133.70,3.8,6.0,4 2024-10-01 22:00,32.0,0.0,0.2,,0.00,134.10,3.8,7.6,5 2024-10-01 23:00,31.0,0.0,0.2,,0.00,134.20,3.8,6.1,4 2024-10-02 00:00,30.0,0.0,0.0,,0.00,134.00,3.8,6.5,5 2024-10-02 01:00,30.0,0.0,0.2,,0.00,133.80,3.8,7.0,4 2024-10-02 02:00,31.0,0.0,0.2,,0.00,133.80,3.8,6.4,4 2024-10-02 03:00,30.0,0.0,0.2,,0.00,133.80,3.8,6.6,5 2024-10-02 04:00,29.0,0.0,0.2,,0.00,133.90,3.8,6.8,5 2024-10-02 05:00,29.0,0.0,0.2,,0.00,133.80,3.8,6.4,4 2024-10-02 06:00,29.0,0.0,0.2,,0.00,134.00,3.8,6.4,5 2024-10-02 07:00,29.0,,3.5,,0.00,9.05,6.7,4.5,260 2024-10-02 08:00,29.0,0.0,0.0,0,75.00,139.10,6.6,4.6,249 2024-10-02 09:00,32.0,0.0,0.0,,72.00,247.50,6.6,4.6,247 2024-10-02 10:00,34.0,0.0,0.0,0,68.00,331.10,6.6,2.9,189 2024-10-02 11:00,38.0,,0.0,0,56.00,372.50,7.8,3.7,116 2024-10-02 12:00,39.0,,0.0,0,53.00,301.20,8.5,4.4,105 2024-10-02 13:00,41.0,,0.0,0,49.00,363.50,10.4,5.0,103 2024-10-02 14:00,42.0,,0.0,0,47.00,152.30,9.4,3.2,170 2024-10-02 15:00,40.0,,0.0,0,47.00,220.50,7.3,3.0,200 2024-10-02 16:00,39.0,,0.0,0,52.00,29.11,7.6,3.2,237 2024-10-02 17:00,37.0,,0.0,0,56.00,17.23,6.0,3.4,254 2024-10-02 18:00,33.0,0.0,0.0,0,68.00,2.62,7.7,4.6,255 2024-10-02 19:00,31.0,,0.0,0,72.00,0.02,8.7,5.2,258 2024-10-02 20:00,31.0,0.0,0.0,0,73.00,0.01,7.4,4.5,256 2024-10-02 21:00,30.0,0.0,0.0,0,73.00,0.02,8.0,5.1,258 2024-10-02 22:00,30.0,0.0,0.0,0,73.00,0.02,7.4,4.9,262 2024-10-02 23:00,30.0,0.0,0.0,0,71.00,0.05,6.8,4.2,257 2024-10-03 00:00,31.0,0.0,0.0,0,69.00,0.05,6.2,4.0,253 2024-10-03 01:00,31.0,0.0,0.0,0,68.00,0.04,5.4,3.3,266 2024-10-03 02:00,31.0,0.0,0.0,0,69.00,0.04,7.0,4.0,262 2024-10-03 03:00,30.0,0.0,0.0,0,70.00,0.07,8.2,5.3,270 2024-10-03 04:00,33.0,0.0,0.0,0,66.00,0.08,7.1,4.7,258 2024-10-03 05:00,31.0,0.0,0.0,0,69.00,0.03,6.2,4.3,259 2024-10-03 06:00,30.0,0.0,0.0,0,70.00,0.18,9.0,5.3,276 2024-10-03 07:00,31.0,0.0,0.0,0,65.00,9.97,8.2,5.3,256 2024-10-03 08:00,29.0,0.0,0.0,0,70.00,135.50,7.2,5.2,241 2024-10-03 09:00,34.0,0.0,0.0,0,61.00,241.00,5.3,2.7,247 2024-10-03 10:00,37.0,,0.0,0,57.00,321.50,7.8,2.7,148 2024-10-03 11:00,40.0,,0.0,0,46.00,379.00,8.5,2.3,148 2024-10-03 12:00,40.0,,0.0,0,44.00,236.40,7.6,2.4,221 2024-10-03 13:00,40.0,,0.0,0,43.00,254.00,8.3,3.0,136 2024-10-03 14:00,40.0,,0.0,0,44.00,118.30,8.8,3.1,94 2024-10-03 15:00,41.0,,0.0,0,59.00,141.20,8.2,3.1,80 2024-10-03 16:00,39.0,,0.0,0,56.00,47.48,7.3,2.1,21 2024-10-03 17:00,39.0,,0.0,0,55.00,21.69,6.5,2.2,306 2024-10-03 18:00,37.0,0.0,0.0,0,64.00,1.97,8.5,2.2,292 2024-10-03 19:00,38.0,0.0,0.0,0,60.00,0.21,7.1,1.5,258 2024-10-03 20:00,39.0,0.0,0.0,0,52.00,0.14,5.6,1.8,233 2024-10-03 21:00,38.0,0.0,0.0,0,52.00,0.16,5.0,2.2,249 2024-10-03 22:00,38.0,0.0,0.0,0,50.00,0.18,6.3,1.5,240 2024-10-03 23:00,39.0,0.0,0.0,0,50.00,0.15,5.6,2.0,228 2024-10-04 00:00,40.0,0.0,0.0,0,48.00,0.18,7.0,2.1,158 2024-10-04 01:00,39.0,0.0,0.0,0,50.00,0.20,11.4,2.4,127 2024-10-04 02:00,40.0,0.0,0.0,0,48.00,0.17,7.1,2.6,264 2024-10-04 03:00,38.0,0.0,0.0,0,52.00,0.18,8.0,2.1,232 2024-10-04 04:00,40.0,0.0,0.0,0,48.00,0.24,8.9,2.2,230 2024-10-04 05:00,39.0,0.0,0.0,0,46.00,0.18,9.2,3.4,220 2024-10-04 06:00,39.0,0.0,0.0,0,49.00,0.35,10.6,2.7,200 2024-10-04 07:00,38.0,0.0,0.0,0,53.00,6.33,10.6,3.4,175 2024-10-04 08:00,40.0,0.0,0.0,0,47.00,33.73,10.9,3.1,124 2024-10-04 09:00,39.0,0.0,0.0,0,49.00,46.89,10.3,2.3,207 2024-10-04 10:00,40.0,0.0,0.0,0,49.00,50.26,13.7,3.8,80 2024-10-04 11:00,42.0,,0.0,0,47.00,,,,