gov.noaa.ncdc:C00382 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Unknown tabular digital data http://www.ncdc.noaa.gov Monthly Aerological Data Set (MONADS) Subset / Short MONADS is digital data set DSI-6221 archived at the National Climatic Data Center (NCDC). As suggested by its title, Short MONADS is a subset of the larger digital data set MONADS. (The latter is NCDC digital data set DSI-6220.) MONADS is statistical upper air data, based on radiosonde data from another digital data set at NCDC: Comprehensive Aerological Data Set (CARDS) (DSI-6305). MONADS has data for the surface, tropopause, and mandatory pressure levels. Short MONADS has statistics for geopotential height, temperature, specific humidity, zonal wind, and meridional wind. For each of these, parameters consist of the statistical values mean value, standard deviation, and the number of observations used to compute the mean and standard deviation. Data are from upper air stations all over the world. The data period varies by station. The earliest data is from 1948; the latest, from 1990. To make a wide range of climatic data available to researchers and the public. Alduchov, O.A. R.E. Eskridge 19960101 Asheville, NC National Climatic Data Center (NCDC) NTIS No. PB97 132286, 126pp. data set C00382 HUMIDITY SENSORS RADIOSONDES BALLOONS RADIOSONDES National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Alduchov, O.A. and R.E. Eskridge, 1996: Complex quality control of upper air variables (geopotential height, temperature, wind, and humidity) at mandatory and significant levels for the CARDS dataset. National Climatic Data Center publication, NTIS No. PB97 132286, 126pp. 19480101 19901231 Ground Condition Complete As Needed -180.0 180.0 90.0 -90.0 ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 elevation 006 DIF Discipline Keyword Thesaurus Earth Sciences > Atmosphere > Meteorology Earth Sciences > Atmosphere > Climatology Earth Sciences > Atmosphere > Weather GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > ALTITUDE > GEOPOTENTIAL HEIGHT EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > UPPER LEVEL WINDS GCMD Location Valids GLOBAL GCMD Location Valids TROPOSPHERE STRATOSPHERE RADIOSONDES RADIOSONDES BALLOONS RAWINSONDES 1 None None Not provided Unknown Completeness information not available. Unknown Unknown Station Identifier: (NID) is 6 digit number comprised of the World Meteorological Organization number in positions 1 - 5 identifying the location where the data was observed that was used to compute the statistics in this data set. The sixth digit specifies the type station and is identified in the TDF63 CARDS data format document. Year: (NYEAR) is 4 digit number that represents the year during which data was observed. Month: (MON) is 2 digit number that represents the month during which the data was observed. Observation time: (NTIME) is 2 digit number that represents the hour when data was observed. Level type: (LTYPE) is 2 digit coded number that indicates the level in the earth's atmosphere where the data values were observed. 26 Tropopause level 31 Surface level 32 Mandatory pressure level Pressure at level: (NPRES) is 5 digit number that is mean atmospheric pressure (0.1 mb) for level types 26 and 31, and is pressure at one of the mandatory levels for level type 32. Mean geopotential height/Mean pressure: (MEANHT) is 5 digit number that represents mean computed height in meters for mandatory pressure level or mean pressure (0.1 mb) for surface or tropopause level. Standard deviation from mean height/pressure: (MHTSTD) is 5 digit number representing the standard deviation (m) from the mean height of a mandatory pressure level or the standard deviation (0.1 mb) from the mean pressure at the surface and tropopause levels. Number of observations used to compute height/pressure statistics: (NUMHT) is 2 digit number that represents the total number of observations used to compute the height/pressure statistics. The above defined statistics are repeated for the other elements. The following record format definition details those elements: MONADS MONthly Aerological Data Set (Simple and Order Statistics) POSITION: 1-6 ELEMENT: WMO number POSITION: 7-10 ELEMENT: Year POSITION: 11-12 ELEMENT: Month POSITION: 13-14 ELEMENT: Observation time POSITION: 15-16 ELEMENT: Level type (26=Tropopause, 31=Surface, 32=Mandatory Level) POSITION: 17-21 ELEMENT: Pressure at level (0.1 mb) POSITION: 22-33 ELEMENT: Geopotential height stats in whole meters for level type 32 Pressure stats to 0.1 mb for levels 26 and 31 POSITION: 22-26 ELEMENT: Mean value POSITION: 27-31 ELEMENT: Standard deviation POSITION: 32-33 ELEMENT: Number observations used to compute height/pressure statistics POSITION: 34-42 ELEMENT: Temperature statistics to 0.1C POSITION: 34-37 ELEMENT: Mean value POSITION: 38-40 ELEMENT: Standard deviation POSITION: 41-42 ELEMENT: Number observations used to compute temperature statistics POSITION: 43-55 ELEMENT: Specific Humidity statistics to 0.001 g/kg POSITION: 43-48 ELEMENT: Mean value POSITION: 49-53 ELEMENT: Standard deviation POSITION: 54-55 ELEMENT: Number observations used to compute specific humidity statistics POSITION: 56-77 ELEMENT: Wind statistics to 0.1 mps POSITION: 56-67 ELEMENT: Zonal wind statistics POSITION: 56-60 ELEMENT: Mean value POSITION: 61-64 ELEMENT: Standard deviation POSITION: 65-66 ELEMENT: Number observations used to compute zonal wind statistics POSITION: 67-77 ELEMENT: Meridional wind statistics POSITION: 67-71 ELEMENT: Mean value POSITION: 72-75 ELEMENT: Standard deviation POSITION: 76-77 ELEMENT: Number observations used to compute meridional wind statistics **** Note: Divisor N vice N 1 was used in computing standard deviations. Decimals are implied. All 9's (negative or positive) in a data field represent missing data except for dew point statistics where '09999' is used for missing data in all fields except standard deviation which has '999' for missing data. None National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Service Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4876 NCDC.Orders@noaa.gov DSI-6221 Every effort has been made to ensure that these data are accurate and reliable within the limits of current NOAA quality control procedures. NOAA can only certify that the data provided to its customers is an authentic copy of the records which were accepted for inclusion in NOAA archives. NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. 20060627 20060627 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Service Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4876 NCDC.Orders@noaa.gov Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002