TITLE: Automated Surface Observing System (ASOS) NAWS China Lake 1-min Data [NCAR/EOL] CONTACTS: Steve Williams NCAR/EOL P.O. Box 3000 Boulder, CO 80307-3000 phone: 303-497-8164 email: sfw@ucar.edu 1.0 DATA SET OVERVIEW This data set contains 1-minute resolution surface meteorological data from the Automated Surface Observing System (ASOS) stations located at the Naval Air Weapons Station (NAWS) China Lake. These data were provided by NAWS China Lake for the T-REX period (March and April 2006). Each file gzipped file containing one day of data. The data are in comma-delimited ASCII. 2.0 INSTRUMENT DESCRIPTION 2.1 Instrumentation information Information on the ASOS instrumentation can be found at the National Weather Service (NWS) ASOS web page at: http://www.nws.noaa.gov/asos/ or at the Federal Aviation Administration (FAA) automated weather sensors web site at: http://www.faa.gov/asos/asos.htm Also the following documents are included with your order: ASOS_Ready_Ref_Guide.pdf asos_users_guide.pdf asos_users_guide_app.pdf 2.2 Station Locations The station location is from the NOAA Multi-Network Metadata System. 35.6875 N 117.69306 W 2230 ft 3.0 DATA COLLECTION AND PROCESSING NCAR/EOL conducted no processing or quality control on these data. For information on ASOS data collection and processing please see: The ASOS User's Guide and Appendices and the ASOS Ready Reference Guide which have all been included with your data order. Here are the file names: ASOS_Ready_Ref_Guide.pdf asos_users_guide.pdf asos_users_guide_app.pdf Further information is also available at: The NWS ASOS Home Page: http://www.nws.noaa.gov/asos/ or at the FAA Automated Weather Sensor Home Page: http://www.faa.gov/asos/asos.htm or at the National Climatic Data Center Data Documentation for Data Set 3285 (DSI-3285) ASOS Surface 1 Minute Data included with your order as td3285.pdf. 4.0 DATA FORMAT AND FILE NAMING 4.1 File Naming conventions Files have names like: 04-21-2006new.txt.gz where: 04 is the two digit month 21 is the two digit day 2006 is the four digit year 4.2 Data Format These data are comma delimited ASCII. The parameters are as follows: Date Time Wind Direction - degrees Wind Speed - knots Wind Gust - knots Present Weather Temperature - degrees C Dew Point - degrees C Altimeter - inches of mercury Pressure Altitude- feet Relative Humidity - percent Density Altitude- feet 5.0 DATA REMARKS 6.0 REFERENCES None.