#------------------------------------------------- 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: Daily # Date Range: 2015-01-01 to 2015-03-31 # Report Instantaneous Data As: Start of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 1103: Mt. Alyeska, AK # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Snow Water Equivalent Value None Instantaneous - Start of Day N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # Snow Water Equivalent Median (1981-2010) None Instantaneous - Start of Day N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # Snow Water Equivalent % of median (1981-2010) None Instantaneous - Start of Day 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 - Start of Day N/A Inches N/A SNWD Total snow depth # Precipitation Accumulation Value None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # Precipitation Accumulation Average (1981-2010) None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # Precipitation Accumulation % of average (1981-2010) None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # Air Temperature Maximum Value None Day N/A Degrees fahrenheit N/A TMAX Maximum air temperature - sub-hourly sampling frequency # Air Temperature Minimum Value None Day N/A Degrees fahrenheit N/A TMIN Minimum air temperature - sub-hourly sampling frequency # Air Temperature Average Value None Day N/A Degrees fahrenheit N/A TAVG Average air temperature - sub-hourly sampling frequency # # 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 # #------------------------------------------------------------------------------------------------------ # # Mt. Alyeska (1103) # Alaska SNOTEL Site - 1540 ft # Reporting Frequency: Daily; Date Range: 2015-01-01 to 2015-03-31 # # As of: May 19, 2024, 1:57:20 PM GMT-08:00 # Date,Snow Water Equivalent (mm) Start of Day Values,Median Snow Water Equivalent (1981-2010) (mm) Start of Day Values,Snow Water Equivalent % of Median (1981-2010),Snow Depth (cm) Start of Day Values,Precipitation Accumulation (mm) Start of Day Values,Average Precipitation Accumulation (1981-2010) (mm) Start of Day Values,Precipitation Accumulation % of Average (1981-2010),Air Temperature Maximum (degC),Air Temperature Minimum (degC),Air Temperature Average (degC) 2015-01-01,,373.7,,38,546.1,651.3,84,0.3,-2.1,-0.8 2015-01-02,,377.4,,36,548.6,656.4,84,-1.5,-5.9,-4.1 2015-01-03,,379.5,,36,551.2,659.4,84,-1.1,-9.2,-4.1 2015-01-04,,383.5,,36,553.7,664.7,83,-7.4,-11.4,-10.2 2015-01-05,,387.9,,36,553.7,671.2,82,-3.2,-9.1,-4.8 2015-01-06,,394.4,,36,553.7,675.5,82,-1.3,-6.1,-3.6 2015-01-07,,400.2,,33,553.7,684.0,81,3.8,-9.2,-2.2 2015-01-08,,405.7,,33,553.7,693.9,80,5.8,2.3,3.7 2015-01-09,,413.7,,30,569.0,702.8,81,6.2,3.4,4.2 2015-01-10,,420.9,,28,571.5,709.0,81,4.4,3.2,3.7 2015-01-11,,427.1,,25,571.5,716.4,80,3.6,2.3,2.9 2015-01-12,,434.0,,25,571.5,722.4,79,5.3,1.7,3.2 2015-01-13,,440.1,,23,579.1,729.2,79,6.4,2.1,3.7 2015-01-14,,446.0,,20,599.4,736.4,81,4.7,1.7,3.2 2015-01-15,,455.0,,18,635.0,744.9,85,5.3,1.3,3.2 2015-01-16,,461.9,,15,670.6,751.7,89,4.2,1.0,2.2 2015-01-17,,468.8,,15,675.6,761.2,89,2.7,0.1,1.2 2015-01-18,,475.3,,13,678.2,772.2,88,0.4,-2.9,-0.6 2015-01-19,,480.8,,18,683.3,776.8,88,0.4,-3.1,-1.4 2015-01-20,,484.8,,18,683.3,784.9,87,1.9,-7.7,-4.3 2015-01-21,,489.5,,18,690.9,789.7,87,-6.2,-9.9,-7.9 2015-01-22,,491.7,,18,690.9,798.1,87,-1.3,-9.8,-4.6 2015-01-23,,493.5,,18,690.9,805.5,86,3.3,-6.9,-2.2 2015-01-24,,495.3,,20,693.4,810.8,86,-6.4,-11.4,-8.4 2015-01-25,,496.8,,25,701.0,814.5,86,-10.9,-16.4,-13.6 2015-01-26,,498.9,,25,701.0,818.9,86,-7.7,-16.6,-14.1 2015-01-27,,501.8,,23,701.0,821.9,85,-5.4,-12.4,-9.6 2015-01-28,,506.9,,23,701.0,826.6,85,-2.7,-11.6,-6.8 2015-01-29,,512.0,,23,701.0,831.9,84,-2.3,-7.1,-5.2 2015-01-30,,517.1,,18,701.0,834.3,84,-0.7,-9.2,-5.8 2015-01-31,,522.2,,23,701.0,839.6,83,2.0,-7.1,-1.6 2015-02-01,61.0,527.2,12,23,701.0,850.1,82,0.8,-3.9,-1.7 2015-02-02,,531.6,,23,701.0,853.3,82,-0.4,-4.4,-2.3 2015-02-03,,536.3,,23,701.0,855.1,82,-4.0,-6.4,-5.3 2015-02-04,,538.1,,23,701.0,860.1,82,-5.2,-8.8,-6.5 2015-02-05,,542.8,,25,701.0,868.0,81,-7.6,-12.9,-10.7 2015-02-06,,548.3,,23,701.0,877.4,80,-6.6,-11.7,-9.6 2015-02-07,,554.1,,25,701.0,887.8,79,-8.9,-14.5,-12.6 2015-02-08,,561.7,,25,701.0,895.1,78,-5.1,-16.1,-13.6 2015-02-09,,570.8,,28,703.6,899.2,78,-0.8,-6.4,-3.3 2015-02-10,,578.8,,28,703.6,903.0,78,1.9,-2.1,-0.4 2015-02-11,,587.8,,30,703.6,911.5,77,2.2,-2.2,-0.7 2015-02-12,,594.7,,28,703.6,920.3,76,2.8,-0.2,1.2 2015-02-13,,601.3,,30,703.6,925.0,76,3.9,-5.2,-1.4 2015-02-14,,608.5,,30,703.6,930.0,76,5.1,0.9,2.8 2015-02-15,,613.6,,28,703.6,936.8,75,3.7,0.8,2.0 2015-02-16,,616.9,,25,708.7,944.5,75,4.9,1.1,2.4 2015-02-17,,621.6,,25,731.5,950.1,77,4.0,-0.4,1.9 2015-02-18,,626.7,,25,734.1,954.5,77,0.3,-2.7,-1.3 2015-02-19,,631.7,,25,734.1,959.7,76,3.1,-3.1,-0.3 2015-02-20,,637.9,,25,734.1,965.2,76,4.1,1.9,3.0 2015-02-21,,644.1,,23,734.1,968.6,76,3.4,1.2,2.0 2015-02-22,,650.2,,25,767.1,973.0,79,5.5,2.1,3.8 2015-02-23,,656.0,,15,767.1,977.3,78,2.7,0.4,1.6 2015-02-24,,660.0,,15,777.2,986.0,79,1.1,-0.7,0.1 2015-02-25,,663.3,,15,779.8,990.0,79,-0.1,-5.0,-3.1 2015-02-26,,665.1,,18,784.9,997.8,79,-1.2,-5.8,-3.8 2015-02-27,,665.5,,18,784.9,1003.0,78,3.4,-5.1,-0.6 2015-02-28,50.8,666.2,8,15,784.9,1006.0,78,2.2,-1.4,0.9 2015-03-01,50.8,676.0,8,15,784.9,1013.5,77,2.1,-4.1,-1.4 2015-03-02,,683.6,,15,784.9,1018.3,77,3.8,1.2,2.3 2015-03-03,,691.2,,15,784.9,1023.4,77,2.3,-0.3,0.8 2015-03-04,,700.0,,20,784.9,1027.5,76,3.2,0.8,1.9 2015-03-05,,709.0,,18,784.9,1032.1,76,3.9,1.1,2.3 2015-03-06,,716.6,,18,784.9,1035.9,76,2.9,0.4,1.4 2015-03-07,,721.0,,18,784.9,1041.8,75,1.3,-1.9,-0.1 2015-03-08,,724.6,,30,802.6,1047.6,77,-1.3,-9.4,-5.1 2015-03-09,,726.4,,28,807.7,1052.8,77,-7.2,-11.5,-9.7 2015-03-10,,728.3,,28,810.3,1057.3,77,-10.2,-15.1,-12.8 2015-03-11,,729.7,,25,810.3,1066.0,76,-11.1,-16.8,-14.3 2015-03-12,,736.6,,25,810.3,1072.1,76,-12.6,-18.2,-15.6 2015-03-13,,743.5,,25,810.3,1077.0,75,-12.7,-18.4,-15.8 2015-03-14,,750.4,,25,810.3,1080.6,75,-12.7,-19.0,-16.3 2015-03-15,,758.0,,25,810.3,1086.8,75,-0.8,-16.8,-8.3 2015-03-16,,766.7,,28,810.3,1090.2,74,1.8,-0.8,0.2 2015-03-17,,774.7,,43,825.5,1094.4,75,4.0,-0.3,1.4 2015-03-18,,782.0,,41,825.5,1097.3,75,4.6,1.1,2.5 2015-03-19,,783.4,,36,828.0,1102.7,75,4.0,1.1,2.4 2015-03-20,,784.9,,33,833.1,1110.8,75,3.3,0.1,1.8 2015-03-21,,786.3,,33,833.1,1116.2,75,4.8,0.2,2.2 2015-03-22,,787.4,,33,833.1,1119.8,74,4.0,0.2,1.8 2015-03-23,,789.9,,33,833.1,1123.8,74,3.3,-1.4,0.9 2015-03-24,,792.5,,33,833.1,1129.4,74,5.0,-0.2,2.2 2015-03-25,,795.0,,33,833.1,1140.8,73,7.4,0.8,3.6 2015-03-26,,797.6,,33,833.1,1145.5,73,4.2,0.2,2.0 2015-03-27,,800.5,,36,856.0,1148.3,75,3.8,0.3,1.7 2015-03-28,,803.7,,33,863.6,1152.9,75,4.7,0.4,2.0 2015-03-29,,807.4,,36,866.1,1160.7,75,3.5,-0.1,0.9 2015-03-30,,810.3,,43,883.9,1166.6,76,2.9,-0.6,1.1 2015-03-31,111.8,817.2,14,43,886.5,1170.8,76,3.8,-0.3,1.4