gov.noaa.ncdc:C00365 National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Unknown tabular digital data http://www.ncdc.noaa.gov http://www4.ncdc.noaa.gov/ol/documentlibrary/datasets.html#TD3283 http DSI-3283 Documentation NCDC Dataset Documentation for DSI-3283 information Surface Airways Hourly Observations - ASOS is digital data set DSI-3283 archived at the National Climatic Data Center (NCDC). This data set contains Automated Surface Observation System (ASOS) hourly surface weather observations that are measured primarily at major airports and military bases. The stations are operated by the US National Weather Service (NWS), the Federal Aviation Administration (FAA) and the Department of Defense (DOD). The NWS and FAA sites are located in the contiguous U.S., Alaska, Puerto Rico, Hawaii and other Pacific Islands. Observations are made by automated equipment and may be augmented by a human observer. The stations are usually fully instrumented and record a complete range of meteorological parameters. The major parameters are: Cloud height and amount, visibility, winds, precipitation, temperature, dew point temperature, relative humidity, pressure, and present weather.Users must be aware that DSI-3280 (C00215) and DSI-3283 are similar. The only difference is that DSI-3280 contains quality controlled data that has been hand checked by personnel at the National Climatic Data Center. DSI-3283 only contains data that is automatically quality controlled, therefore, it is considered to be "raw" data. To make a wide range of climatic data available to researchers and the public. data set C00365 AEROVANES ANEMOMETERS AWS > AUTOMATED WEATHER SYSTEM BAROMETERS HUMIDITY SENSORS HYGROMETERS PRESSURE SENSORS RAIN GAUGES SNOW MEASURING ROD CEILOMETERS SUNSHINE RECORDERS TEMPERATURE LOGGERS TEMPERATURE SENSORS THERMOMETERS TURBIDITY METERS VISUAL OBSERVATIONS WIND VANES ASOS > Automated Surface Observing System National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce http://www4.ncdc.noaa.gov/ol/documentlibrary/datasets.html#TD3283 20000101 Present Ground Condition In work As Needed 130.0 -60.0 72.0 -15.0 ISO 19115 Topic Category climatologyMeteorologyAtmosphere 004 elevation 006 DIF Discipline Keyword Thesaurus Earth Sciences > Atmosphere > Meteorology Earth Sciences > Atmosphere > Climatology Earth Sciences > Atmosphere > Weather Earth Sciences > Land > Hydrology GCMD Sciences Keyword Valids EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > TURBIDITY EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > VISIBILITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > STORMS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > TORNADOS EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PHENOMENA > FOG EARTH SCIENCE > ATMOSPHERE > AEROSOLS > DUST/ASH/SMOKE EARTH SCIENCE > ATMOSPHERE > ALTITUDE > STATION HEIGHT EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > FREEZING RAIN EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > HAIL EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SEA LEVEL PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC PRESSURE > SURFACE PRESSURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC TEMPERATURE > SURFACE AIR TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > DEW POINT TEMPERATURE EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WATER VAPOR > HUMIDITY EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > PRECIPITATION AMOUNT EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > RAIN EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SLEET EARTH SCIENCE > ATMOSPHERE > PRECIPITATION > SNOW EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD AMOUNT/FREQUENCY EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD HEIGHT EARTH SCIENCE > ATMOSPHERE > CLOUDS > CLOUD VERTICAL DISTRIBUTION GCMD Location Valids UNITED STATES OF AMERICA PUERTO RICO VIRGIN ISLANDS GUAM AMERICAN SAMOA MARSHALL ISLANDS MICRONESIA PALAU GCMD Location Valids TROPOSPHERE LAND SURFACE Automated Surface Observing System ASOS HYGROMETERS Automated Surface Observing System ASOS HUMIDITY SENSORS Automated Surface Observing System ASOS THERMOMETERS Automated Surface Observing System ASOS TEMPERATURE SENSORS Automated Surface Observing System ASOS TEMPERATURE LOGGERS Automated Surface Observing System ASOS RAIN GAUGES Automated Surface Observing System ASOS SNOW MEASURING ROD Automated Surface Observing System ASOS CEILOMETERS Automated Surface Observing System ASOS SUNSHINE RECORDERS Automated Surface Observing System ASOS PRESSURE SENSORS Automated Surface Observing System ASOS WIND VANES Automated Surface Observing System ASOS ANEMOMETERS Automated Surface Observing System ASOS AEROVANES Automated Surface Observing System ASOS AUTOMATED WEATHER SYSTEM AWS Automated Surface Observing System ASOS BAROMETERS Automated Surface Observing System ASOS VISUAL OBSERVATIONS Automated Surface Observing System ASOS TURBIDITY METERS 1 None None Not provided Unknown Completeness information not available. Not derived from another source. Unknown Positions 1-3: RECORD-TYPE - The type of data stored in this record. Value is "HLY". Each record contains one day of hourly values. Positions 4-11: STATION-ID - Contains the WBAN Station Number. (Assigned by NCDC.) ID Range of values = 00000000-00099999. Five digit station numbers are always right justified and zero filled. Positions 12-15: METEOROLOGICAL ELEMENT-TYPEThe type of meteorological element stored in this record consisting of a four character alpha. Range of values is listed below.ALC"x"DESCRIPTION: Sky condition in tenths and height per layer.VALID TIMES: thru currentCOMMENTS: The ASOS ceilometer provides data for a maximum of three layers at or below 12,000 feet and does not distinguish between thin and opaque cloud layers. ASOS sites augmented by a human observer can report up to six layers of clouds and are not limited to 12,000 feet. The element ALC@x@ (tenths) is derived from the element ALM@x@ (eights).The "x" indicates the layer where:1 = The lowest layer2 = The second layer3 = The third layer4 = The fourth layer (ASOS Augmented stations only)5 = The fifth layer (ASOS Augmented stations only)6 = The sixth layer (ASOS Augmented station only)The DATA-VALUE portion of the record will appear as XXYYY where: XX = The code for sky conditionYYY = The layer height in hundreds of feet.XX Code - Sky Condition (tenths)00 = clear or less than .1 coverage02 = scattered .1 to .5 coverage04 = broken .6 to .9 coverage06 = overcast 1.0 coverage07 = obstruction 1.0 coverage09 = unknownYYY Code - Layer Height (hundreds of feet)000 = Clear conditions (with >00' code for XX)999 = Unknown value (with >09' code for XX)Sky and ceiling information are automatically derived from ceilometer data in the ASOS. Except in the case of augmentation, sky and ceiling are no longer an estimate of conditions from a human observer. The ASOS cloud height is an estimate based on the heights of clouds detected every 30 seconds during the previous 30 minutes (with the last 10 minutes of data double weighted). The cloud amount (CLR, SCT, BKN, OVC) is derived from the ratio of the number of possible hits. The ceilometer measures clouds at or below 12,000 feet.ALM"x"DESCRIPTION: Sky condition in eights and height per layer.VALID TIMES: thru currentCOMMENTS: The ASOS ceilometer provides data for a maximum of three layers at or below 12,000 feet and does not distinguish between thin and opaque cloud layers. ASOS sites augmented by a human observer can report up to six layers of clouds and are not limited to 12,000 feet. The element ALC@x@ (tenths) is derived from the element ALM@x@ (eights).The "x" indicates the layer where:1 = The lowest layer2 = The second layer3 = The third layer4 = The fourth layer (ASOS Augmented stations only)5 = The fifth layer (ASOS Augmented stations only)6 = The sixth layer (ASOS Augmented station only)The DATA-VALUE portion of the record will appear as XXYYY where:XX = The code for sky conditionYYY = The layer height in hundreds of feet.XX Code - Sky Condition (eights)00 = Clear01 = few scattered 1/8 to 2/8 coverage02 = scattered 3/8 to 4/8 coverage04 = broken 5/8 to 7/8 coverage06 = overcast 8/8 coverage07 = obscuration 8/8 coverage09 = unknownYYY Code - Layer Height (hundreds of feet)000 = Clear conditions (with greater than 00' code for XX)999 = Unknown value (with greater than 09' code for XX)Sky and ceiling information are automatically derived from ceilometer data in the ASOS. Except in the case of augmentation, sky and ceiling are no longer an estimate of conditions from a human observer. The ASOS cloud height is an estimate based on the heights of clouds detected every 30 seconds during the previous 30 minutes (with the last 10 minutes of data double weighted). The cloud amount (CLR, SCT, BKN, OVC) is derived from the ratio of the number of possible hits. The ceilometer measures clouds at or below 12,000 feet.ALTPDESCRIPTION: Altimeter setting.VALID TIMES: thru currentRange of values: 02700 to 03200CLHTDESCRIPTION: Ceiling heightVALID TIMES: through currentCOMMENTS: All clouds are considered opaque.Sky and ceiling information are automatically derived from ceilometer data in the ASOS. The ASOS cloud height is an estimate based on the heights of clouds detected every 30 seconds during the previous 30 minutes (with the last 10 minutes of data double weighted). The ASOS ceilometer measures clouds at or below 12,000 feet. ASOS Augmented sites and human observer sites can also report ceiling heights greater than 12,000 feet.CLT"x"DESCRIPTION: The cloud type and height by layer.VALID TIMES: through currentCOMMENTS: The Metar code only allows the reporting of CB (Cumulonimbus) and TC (Towering Cumulus) cloud types.The "x" indicates the layer where:1 = lowest cloud layer or obscuring phenomena2 = 2nd cloud layer3 = 3rd cloud layer4 = 4th cloud layer5 = 5th cloud layer6 = 6th cloud layerCloud information pertaining to cloud type and cloud height is contained within one element per level. The DATA-VALUE portion of the record will appear as: XXYYY.XXYYY constitutes the five character field where:XX = Code for cloud type listed below.YYY = Cloud height (hundreds of feet)9's for any unknown value.Generic cloud type or obscuring phenomena codes are:CLOUD TYPE ABBREVIATION00 = None12 = Towering Cumulus TCU18 = Cumulonimbus CBDPTCDew Point Temperature in tenths degree Celsius.VALID TIMES: through currentCOMMENTS: The element DPTP (degrees Fahrenheit) is derived from the element DPTC (tenth=s degree Celsius).The DATA-VALUE will appear as 00XXX.Range of values: 00000 to 00600 (positive and negative)Unknown or Missing: 00999Measured to tenths degrees CelsiusDPTPDESCRIPTION: Dew Point Temperature in degrees Fahrenheit.VALID TIMES: Through currentCOMMENTS: The element DPTP (degrees Fahrenheit) is derived from the element DPTC (tenth=s degree Celsius).The DATA-VALUE will appear as 00XXX.Range of values: 00000 to 00140 (positive and negative)Measured or derived to whole degrees F.HZVSDESCRIPTION: The prevailing Horizontal VisibilityVALID TIMES: Through currentThe DATA-VALUE will appear as XXXXX. Range of value = 00000 to 99999. A value of 99999 indicates unknown or unlimited visibility (greater than 100 miles). Horizontal visibility is usually reported at an elevation of 6 feet above the ground.The following code is used: HZVS CODEReported by Archive Actual visibilityASOS Code (in miles)Yes 00019 3/16 (ASOS less than 1/4 miles)Yes 00025 1/4 milesYes 00050 1/2 milesYes 00075 3/4 milesYes 00100 1 mileYes 00125 1 1/4 milesYes 00150 1 1/2 milesYes 00175 1 3/4 milesYes 00200 2 milesYes 00250 2 1/2 milesYes 00300 3 milesYes 00350 3 1/2 mi.Yes 00400 4 milesYes 00500 5 milesYes 00600 6 milesYes 00700 7 milesYes 00800 8 milesYes 00900 9 milesYes 01000 10 miles(ASOS 10+ miles)NOTE: The automated visibility sensors report values in the range of less than 1/4 to 10+ miles. These reportable ASOS values are indicated in the table above.PWTHDESCRIPTION: The present (or prevailing) weather occurring at the time of the observation.VALID TIMES: Through currentPresent weather codes are two characters in length. The leftmost character indicates the general class of present weather while the rightmost character is a qualifier.The two digit codes are stored into the five digits of the DATA-VALUE portion. ***If there is no occurrence of present weather the valid DATA-Value will always be 00000. Within the five digits used, the leftmost digit is always set to zero. The two-digit weather codes are right justified. For example, moderate snow is coded as 00041. If two types of weather occur for the same hour, the value field would appear as 0XXYY. For example, light rain and fog occurring on the same hour would be coded as 02070.If more than two types occur for the same hour, they will be stored into additional PWTH records as necessary.Consider the following examples:On day 11 Feb 2000 at 1200 (noon) and 1300 hours no present weather occurred.HLY00005264PWTHNA200002A1110021200b00000b11300b00000b1 On day 11 Feb 2000 at 1200 (noon) light snow, light freezing rain, ice fog, and blowing snow all occur. The records will appear as:HLY000005264PWTHNA200002A111001120004026b1HLY000052664PWTHNA198102A111001120007184b1PRESENT WEATHER CODES descriptions follow:CODE FOR PWTH RANGE 00.00 ********** No Occurrencewhere:00 = No present weather occurredCODE FOR PWTH RANGE 10 TO 19.1X ********** Thunderstorm, Tornado, Squallwhere:X = 0 thunderstorm - lightning and thunder. Wind gust less than 50 knots - hail less than .75 inches. A thunderstorm is defined as a local storm produced by a cumulonimbus cloud that is accompanied by lighting and/or thunder. = 2 report of tornado or water spout = 4 moderate squall (A squall is a sudden increase of wind speed by at least 16 knots, reaching 22 knots or more and lasting for at least one minute) = 7 funnel cloud = 9 unknownCODE FOR PWTH RANGE 20 TO 292X ********* Rain, Rain Showers, Freezing Rainwhere:X = 0 light rain = 1 moderate rain = 2 heavy rain = 3 light rain showers = 4 moderate rain showers = 5 heavy rain showers = 6 light freezing rain = 7 moderate freezing rain = 8 heavy freezing rain = 9 unknownCODE FOR PWTH RANGE 30 TO 393X ********* Rain Squalls, Drizzle, Freezing Drizzlewhere:X = 3 light drizzle = 4 moderate drizzle = 5 heavy drizzle = 6 light freezing drizzle = 7 moderate freezing drizzle = 8 heavy freezing drizzle = 9 unknown. The Automated Surface Observing System (ASOS) can report unknown precipitation. This is an indication of light precipitation and is reported when the precipitation discriminator detects, but cannot recognize the type of precipitation.CODE FOR PWTH RANGE 40 TO 494X ********* Snow, Snow Pellets, Ice Crystalswhere:X = 0 light snow = 1 moderate snow = 2 heavy snow = 7 moderate ice crystals = 9 unknownAny occurrence of ice crystals is recorded as a 47.CODE FOR PWTH 50 TO 595X ********* Snow Showers, Snow Squalls, Snow Grainswhere:X = 0 light snow showers = 1 moderate snow showers = 2 heavy snow showers = 6 light snow grains = 7 moderate snow grains = 8 heavy snow grains = 9 unknownCODE FOR PWTH RANGE 60 TO 696X ********* Sleet, Sleet Showers, Hailwhere:X = 0 light ice pellet showers = 1 moderate ice pellet showers = 2 heavy ice pellet showers = 3 light hail (see note below) = 4 moderate hail (see note below) = 5 heavy hail (see note below) = 6 light small hail (see note below) = 7 moderate small hail (see note below) = 8 heavy small hail (see note below) = 9 unknownHail is defined as hailstones 1/4 inch or larger in diameter; small hail and snow pellets are reported when less than 1/4 inch in diameter and are coded as 64 and 67, respectively.CODE FOR PWTH RANGE 70 TO 797X ********* Fog, Blowing dust, Blowing Sandwhere:X = 0 fog/mist. Fog is redefined as a visible aggregate of minute water particles (droplets) which are based at the earth's surface and reduces the horizontal visibility to less than 5/8 statute miles. Mist is defined as a visible aggregate of minute water particles suspended in the atmosphere that reduces visibility to less than 7 statute miles but greater than or equal to 5/8 statute miles. = 1 ice fog / freezing fog = 2 ground fog = 3 blowing dust = 4 blowing sand = 5 heavy fog = 6 glaze (begin 1984) = 7 heavy ice fog (begin 1984) = 8 heavy ground fog (begin 1984) = 9 unknownAll of the above values are recorded only when visibility is less than 7 miles. Ice fog is called freezing fog and is coded as 71.CODE FOR PWTH RANGE 80 TO 898X ******** Smoke, Haze, Smoke and Haze, Blowing Snow, Blowing Spray, Dustwhere:X = 0 smoke = 1 haze = 2 smoke and haze = 3 dust = 4 blowing snow = 5 blowing spray = 6 dust storm = 7 volcanic ash = 8 not used = 9 unknownThese values are recorded only when visibility is less than 7 miles.CODE FOR PWTH RANGE 90 TO 97 AND 99CODE FOR PWTH RANGE 90 TO 979X ****** Ice Pellets, Hail Showers, Small Hail/Snow Pellet Showers, Fog (partial, patches), snow (low drifting)where:X = 0 light ice pellets = 1 moderate ice pellets = 2 heavy ice pellets = 3 hail showers = 4 small hail/snow pellet showers = 5 partial fog = 6 patches fog = 7 low drifting snow = 9 unknownPWVCDESCRIPTION: The present (or prevailing) weather occurring between 5 and 10 statute miles at the time of the observation in the vicinity of the observation.VALID TIMES: through current.PWVC weather codes are two characters in length. The two digit codes are stored into the five digits of the DATA-VALUE portion. ***If there is no occurrence of PWVC, the DATA-Value is not archived.Within the five digits used, the leftmost digit is always set to zero. The two-digit weather codes are always right justified. For example, showers in the vicinity would be coded as 00002. If two types of weather in the vicinity occur for the same hour, the value field would appear as 0XXYY. For example, a thunderstorm in the vicinity and shower in the vicinity would be coded as 00102.If more than two types of weather in the vicinity occur for the same hour, they will be stored into additional PWVC records as necessary. See element PWTH for examples.PWVC DATA-VALUE code descriptions follow:Code Description00 no occurrence01 Thunderstorm in vicinity02 Showers in vicinity03 Sandstorm in vicinity04 Sand / Dust whirls in vicinity05 Dustorm in vicinity06 Blowing snow in vicinity07 Blowing sand in vicinity08 Blowing dust in vicinity09 Fog in vicinityRHUMDESCRIPTION: Relative HumidityVALID TIMES: Through current.Relative Humidity expressed in whole percent. The DATA-VALUE will appear as 00XXX.Range of values: 00000 to 00100SLVPDESCRIPTION: Sea level pressureVALID TIMES: Through current.Pressure, reduced to sea level, expressed in millibars and tenths. The DATA-VALUE will appear as XXXXX.Range of values: 09200 to 10900TMCDDESCRIPTION: Dry Bulb Air Temperature in tenths degree Celsius.VALID TIMES: through currentCOMMENTS: The element TMPD (whole degrees Fahrenheit) is derived from the element TMCD (tenths of degree Celsius).The DATA-VALUE will appear as 00XXX.Range of values: 00000 to 00600 (positive or negative)Measured to tenths degree CelsiusTMPDDESCRIPTION: Dry Bulb Air Temperature in whole degrees Fahrenheit. VALID TIMES: Through currentCOMMENTS: The element TMPD (whole degrees Fahrenheit) is derived from the element TMCD (tenths of degree Celsius).The DATA-VALUE will appear as 00XXX.Range of values: 00000 to 00140 (positive or negative)Measured or derived to whole degrees F.TMPWDESCRIPTION: Wet bulb Temperature in degrees Fahrenheit to tenths.VALID TIMES: Through currentCOMMENTS: The element TMPW is derived from the dry bulb and dew point temperature. Dry bulb and dew point temperatures are observed in tenths of degree Celsius.The DATA-VALUE will appear as 0XXXX.Range of values: 00000 to 01400 (positive or negative)WND2DESCRIPTION: Wind Direction and Speed from ASOSVALID TIMES: through currentCOMMENTS: ASOS wind speeds are two-minute averages in knots. Direction is the direction (in tens of degrees) from which the wind is blowing.The DATA VALUE portion of the record will appear as XXYYY where:XX = The direction in tens of degrees. 00 = calm, 36 = 360 degrees.YYY = The speed of the wind in knots.Example: 28014 is a wind from 280 degrees at 14 knots. 28 = wind 280 degrees. 014 = wind speed is 14 knots.Calm and variable winds are defined as follows:Calm winds include wind speeds of 0 to 2 knots and are coded as 00000Variable winds include wind speeds of 3-6 knots and are coded as 00003 through 00006Example 00004 is a variable wind at 4 knots.ELEMENT - UNITSThe unit and decimal position of the DATA-VALUE of this record.ELEMENT-UNITS TABLEDT Wind direction in tens of degreesF Whole degrees FahrenheitHF Hundreds of feetHM Miles and hundredthsIH Inches and hundredths of mercuryIT Inches and thousandths of mercuryKD knots and direction in tens of degreesKS Knots and direction in 16 point WBAN CodeMT Millibars and tenthsNA No units applicable (non-dimensional)N1 No units applicable - element to tenthsN2 No units applicable - element to hundredths percentTC Degrees Celsius in tenthsTF Degrees Fahrenheit in tenthsWH Watt hour per meter squaredNOTE: All entries are left justified and blank filled.Positions 18-21: YEARThis is the year of the record. Range of value is 1900 to the current year processed.Positions 22-23: MONTHThis is the month of record. Range of value is 01-12.Position 24: SOURCE CODE-1Contains a code indicating the primary source of the original record this element was taken from. Values are 1 or A. SOURCE CODE TABLE1 Original manuscriptA ASOSSource codes reflect normally expected data sources and do not necessarily indicate the actual source of a specific item.Position 25: SOURCE CODE-2Contains a code indicating the back-up source of the original record this element was taken from. Values are 1 or A.SOURCE CODE TABLE1 Original ManuscriptA ASOSPre-1984 data will be coded as a 1.Position 26-27: DAYContains the day of the record. Range 01-31.Position 28-30: NUM-VALUESThis notates the actual number of values reported. Range of values is 001-048.NOTE: A record may contain fewer or more data values than you might expect. A daily record or hourly value may contain as few as one data value or as many as 24. If a particular data value was not taken or is unavailable there is no entry for it.Positions 31-34: TIME-OF VALUEContains the hour and minute of the hourly element value. Range is 0000-2300. The hour is in the leftmost two digits and the minute is in the rightmost two digits. Minutes are always 00. Hour is reported using the 24 hour clock. The time entered is that of the record observation, taken within 10 minutes prior to the hour (e.g., 1353 punched 14 and now archived as 1400).Position 35: SIGN OF METEOROLOGICAL VALUEThis is the 'SIGN' of the meteorological data value (Tape Field 013). This field contains either 1) a blank indicating a positive value or 2) a minus sign indicating a negative value. A plus is not used to indicate a positive value.Position 36-40: DATA-VALUEActual data value. This field is a five-digit integer. Unit and decimal position of the data value are indicated in the ELEMENT-UNITS field described in Tape Field 004.Position 41: FLAG-1The data measurement FLAG.FLAG-1 TABLE (Measurement Value)D Derived valueE Estimated valueG Visibility greater than or = 100 miles (data value = 10000)M Visibility missing (data value = 99999)N Unlimited visibility (data value = 99999)R Dew Point and/or Relative Humidity, originally calculated with respect to ice have been recomputed with respect to water. (DPTP,RHUM)U Unlimited ceiling height (DATA-VALUE = 99999). (CLHT)b (blank) Flag not needed.Position 42: FLAG-2The data measurement FLAG.FLAG-2 (Quality Flag)0 Observed data has passed all internal consistency checks1 Validity indeterminable (primarily for pre-1984 data)2 Observed data has failed an internal consistency check3 Observed data has failed a consistency check4 Observed data value invalid None National Climatic Data Center, NESDIS, NOAA, U.S. Department of Commerce Customer Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.orders@noaa.gov 8:00 - 6:00 Eastern http://www.ncdc.noaa.gov/oa/about/ncdcordering.html DSI-3283 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 Services Branch Mailing and physical

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Asheville North Carolina 28801-5001 USA 828-271-4800 828-271-4010 828-271-4876 ncdc.metadata@noaa.gov 8:00 - 6:00 Eastern Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/MetadataRemoteSensingExtens.pdf http://www.fgdc.gov/standards/projects/FGDC-standards-projects/csdgm_rs_ex/remote-sensing-metadata Content Standard for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata, FGDC-STD-012-2002 http://www.eis.noaa.gov/fgdc/fgdcleg.html NOAA Supplemental Information in Description (NOAA legacy extension to FGDC)