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SOLAR AND METEOROLOGICAL SURFACE OBSERVATION NETWORK (SAMSON) FOR NC, VA
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http://cfpub.epa.gov/si/si_public_comments.cfm
Citation:
Description:
Solar and Meteorological Surface Observational Network (SAMSON) v1.0 data for 6 NWS stations in North Carolina and 4 in Virginia. Hourly solar elements are: extraterrestrial horizontal and extraterrestrial direct normal radiation; global, diffuse, and direct normal radiation. Meteorological elements are: total and opaque sky cover, termperature and dew point, relative humidity, pressure, wind direction and speed, visibility, ceiling height, present weather, precipitable water, aerosol optical depth, snow depth, days since last snowfall, and hourly precipitation.
Record Details:
Record Type:DATA SET
Product Published Date:12/31/1990
Record Last Revised:12/10/2002
Record ID:
16161
Access Procedures
:Contact Kim Hanisak, Environmental Programs, MCNC
khanisak@ncsc.org
http://www.epa.gov/eims/files/ord-nerl/samson.zip
Data Type :CHARACTER
Data Element Description :station's Weather Bureau Army Navy number (WBAN), city, state, time zone, latitude (deg, min), longitude (deg, min), elevation above sea level (m)
Max Value Length :59
Data Element :21 HOURLY PRECIPITATION
Data Type :NUMBER
Data Element Description :in inches and hundredths (000000=099999); also hourly precipitation flag; see information in attached text file
Max Value Length :7
Data Element :20 DAYS SINCE LAST SNOWFALL
Data Type :NUMBER
Data Element Description :number of days since last snowfall (0-88), 88=88 or greater days, 999=missing data
Max Value Length :3
Data Element :19 SNOW DEPTH
Data Type :NUMBER
Data Element Description :snow depth in centimeters on the day indicated (0-100), 9999=missing data
Max Value Length :4
Data Element :18 BROADBAND AEROSOL OD
Data Type :NUMBER
Data Element Description :broadband aerosol optical depth (broadband turbidity) on the day indicated (0.0=0.900), 99999.=missing data
Max Value Length :6
Data Element :17 PRECIPITABLE WATER
Data Type :NUMBER
Data Element Description :precipitable water in millimeters (0-100), 9999=missing data
Max Value Length :4
Data Element :16 PRESENT_WEATHER
Data Type :NUMBER
Data Element Description :present_weather conditions denoted by 9 indicators, see table in attached text file
Max Value Length :9
Data Element :15 CEILING HEIGHT
Data Type :NUMBER
Data Element Description :ceiling height in meters (0-30450), 77777=unlimited ceiling height, 88888=cirroform, 999999=missing data
Max Value Length :6
Data Element :14 VISIBILITY
Data Type :NUMBER
Data Element Description :horizontal visibility in kilometers (0.0=160.9), 777.7=unlimited visibility, 99999.=missing data
Max Value Length :6
Data Element :13 WIND SPEED
Data Type :NUMBER
Data Element Description :wind speed in m/s (0.0=99.0), 9999. or 99.0 = missing data
Max Value Length :5
Data Element :12 WIND DIRECTION
Data Type :NUMBER
Data Element Description :wind direction in degrees (0-360), N=0 or 360, E=90, S=180, W=270, 999=missing data
Max Value Length :3
Data Element :11 STATION PRESSURE
Data Type :NUMBER
Data Element Description :station pressure in millibars (700-1100), 9999=missing data
Max Value Length :4
Data Element :10 RELATIVE HUMIDITY
Data Type :NUMBER
Data Element Description :relative humidity in percent (0-100), 999=missing data
Max Value Length :3
Data Element :9 DEW_POINT TEMPERATURE
Data Type :NUMBER
Data Element Description :dew_point temperature in degrees C (-70.0 - 60.0), 9999=missing data
Max Value Length :5
Data Element :8 DRY BULB TEMPERATURE
Data Type :NUMBER
Data Element Description :dry bulb temperature in degrees C (-70.0 - 60.0), 9999=missing data
Max Value Length :5
Data Element :7 OPAQUE SKY_COVER
Data Type :NUMBER
Data Element Description :amount of sky dome (in tenths) covered by clouds that prevent observing the sky or higher cloud layers, 99=missing data
Max Value Length :2
Data Element :6 TOTAL SKY_COVER
Data Type :NUMBER
Data Element Description :amount of sky dome (in tenths) covered by clouds, 99=missing data
Max Value Length :2
Data Element :5 DIFFUSE HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received from the sky (excluding the solar disk) on a horizontal surface (0-1415), during the 60 minutes preceding the hour indicated, 9999=missing data; includes source and uncertainty flags
Max Value Length :7
Data Element :4 DIRECT NORMAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received within a 5.7 degrees field of view centered on the sun (0-1415) during the 60 minutes preceding the hour indicated, 9999=missing data, includes source and uncertainty flags
Max Value Length :7
Data Element :3 GLOBAL HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :total amount of direct and diffuse solar radiation in Wh/m2 (0-1415)on a horizontal surface during the 60 minutes preceding the hour indicated, 9999=missing data, also flag values
Max Value Length :7
Data Element :2 ET DIRECT NORMAL RADIATION
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received on a surface normal to the sun at the top of the atmosphere during the 60 minutes preceding the hour indicated (0-1415)
Max Value Length :4
Data Element :1 ET HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 orizontal surface at the top of the atmosphere during the 60 minutes preceding the hour indicated (0-1415)
Max Value Length :4
Data Element :OBSERVATION INDICATOR
Data Type :NUMBER
Data Element Description :0=weather observation made, 9=not made or missing; If this field=9 OR if field 13 (wind speed) = missing (9999. or 99.0), then fields 6, 7, 8, 10, 11, 17, and 18 were all modeled and not actually observed
Max Value Length :1
Data Element :HOUR
Data Type :NUMBER
Data Element Description :hour of day in local standard time (1-24)
Max Value Length :2
Data Element :DAY
Data Type :NUMBER
Data Element Description :day of observation
Max Value Length :2
Data Element :MONTH
Data Type :NUMBER
Data Element Description :month of observation
Max Value Length :2
Data Element :YEAR
Data Type :NUMBER
Data Element Description :year of observation (61-90)
Max Value Length :2
Version :1.0
State :NC
Title :SOLAR AND METEOROLOGICAL SURFACE OBSERVATION NETWORK (SAMSON) FOR NC, VA
Version :1.0
State :VA
Organization Name :National Climatic Data Center
Data Elements:
Data Element :HEADER RECORDData Type :CHARACTER
Data Element Description :station's Weather Bureau Army Navy number (WBAN), city, state, time zone, latitude (deg, min), longitude (deg, min), elevation above sea level (m)
Max Value Length :59
Data Element :21 HOURLY PRECIPITATION
Data Type :NUMBER
Data Element Description :in inches and hundredths (000000=099999); also hourly precipitation flag; see information in attached text file
Max Value Length :7
Data Element :20 DAYS SINCE LAST SNOWFALL
Data Type :NUMBER
Data Element Description :number of days since last snowfall (0-88), 88=88 or greater days, 999=missing data
Max Value Length :3
Data Element :19 SNOW DEPTH
Data Type :NUMBER
Data Element Description :snow depth in centimeters on the day indicated (0-100), 9999=missing data
Max Value Length :4
Data Element :18 BROADBAND AEROSOL OD
Data Type :NUMBER
Data Element Description :broadband aerosol optical depth (broadband turbidity) on the day indicated (0.0=0.900), 99999.=missing data
Max Value Length :6
Data Element :17 PRECIPITABLE WATER
Data Type :NUMBER
Data Element Description :precipitable water in millimeters (0-100), 9999=missing data
Max Value Length :4
Data Element :16 PRESENT_WEATHER
Data Type :NUMBER
Data Element Description :present_weather conditions denoted by 9 indicators, see table in attached text file
Max Value Length :9
Data Element :15 CEILING HEIGHT
Data Type :NUMBER
Data Element Description :ceiling height in meters (0-30450), 77777=unlimited ceiling height, 88888=cirroform, 999999=missing data
Max Value Length :6
Data Element :14 VISIBILITY
Data Type :NUMBER
Data Element Description :horizontal visibility in kilometers (0.0=160.9), 777.7=unlimited visibility, 99999.=missing data
Max Value Length :6
Data Element :13 WIND SPEED
Data Type :NUMBER
Data Element Description :wind speed in m/s (0.0=99.0), 9999. or 99.0 = missing data
Max Value Length :5
Data Element :12 WIND DIRECTION
Data Type :NUMBER
Data Element Description :wind direction in degrees (0-360), N=0 or 360, E=90, S=180, W=270, 999=missing data
Max Value Length :3
Data Element :11 STATION PRESSURE
Data Type :NUMBER
Data Element Description :station pressure in millibars (700-1100), 9999=missing data
Max Value Length :4
Data Element :10 RELATIVE HUMIDITY
Data Type :NUMBER
Data Element Description :relative humidity in percent (0-100), 999=missing data
Max Value Length :3
Data Element :9 DEW_POINT TEMPERATURE
Data Type :NUMBER
Data Element Description :dew_point temperature in degrees C (-70.0 - 60.0), 9999=missing data
Max Value Length :5
Data Element :8 DRY BULB TEMPERATURE
Data Type :NUMBER
Data Element Description :dry bulb temperature in degrees C (-70.0 - 60.0), 9999=missing data
Max Value Length :5
Data Element :7 OPAQUE SKY_COVER
Data Type :NUMBER
Data Element Description :amount of sky dome (in tenths) covered by clouds that prevent observing the sky or higher cloud layers, 99=missing data
Max Value Length :2
Data Element :6 TOTAL SKY_COVER
Data Type :NUMBER
Data Element Description :amount of sky dome (in tenths) covered by clouds, 99=missing data
Max Value Length :2
Data Element :5 DIFFUSE HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received from the sky (excluding the solar disk) on a horizontal surface (0-1415), during the 60 minutes preceding the hour indicated, 9999=missing data; includes source and uncertainty flags
Max Value Length :7
Data Element :4 DIRECT NORMAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received within a 5.7 degrees field of view centered on the sun (0-1415) during the 60 minutes preceding the hour indicated, 9999=missing data, includes source and uncertainty flags
Max Value Length :7
Data Element :3 GLOBAL HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :total amount of direct and diffuse solar radiation in Wh/m2 (0-1415)on a horizontal surface during the 60 minutes preceding the hour indicated, 9999=missing data, also flag values
Max Value Length :7
Data Element :2 ET DIRECT NORMAL RADIATION
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 received on a surface normal to the sun at the top of the atmosphere during the 60 minutes preceding the hour indicated (0-1415)
Max Value Length :4
Data Element :1 ET HORIZONTAL RAD
Data Type :NUMBER
Data Element Description :amount of solar radiation in Wh/m2 orizontal surface at the top of the atmosphere during the 60 minutes preceding the hour indicated (0-1415)
Max Value Length :4
Data Element :OBSERVATION INDICATOR
Data Type :NUMBER
Data Element Description :0=weather observation made, 9=not made or missing; If this field=9 OR if field 13 (wind speed) = missing (9999. or 99.0), then fields 6, 7, 8, 10, 11, 17, and 18 were all modeled and not actually observed
Max Value Length :1
Data Element :HOUR
Data Type :NUMBER
Data Element Description :hour of day in local standard time (1-24)
Max Value Length :2
Data Element :DAY
Data Type :NUMBER
Data Element Description :day of observation
Max Value Length :2
Data Element :MONTH
Data Type :NUMBER
Data Element Description :month of observation
Max Value Length :2
Data Element :YEAR
Data Type :NUMBER
Data Element Description :year of observation (61-90)
Max Value Length :2
Geographic Areas:
Title :SOLAR AND METEOROLOGICAL SURFACE OBSERVATION NETWORK (SAMSON) FOR NC, VAVersion :1.0
State :NC
Title :SOLAR AND METEOROLOGICAL SURFACE OBSERVATION NETWORK (SAMSON) FOR NC, VA
Version :1.0
State :VA
Related Organizations:
Role :AUTHOROrganization Name :National Climatic Data Center