Mesonet Illinois Air Monitoring Network CONTACTS: General Information: Steve Williams P.O. Box 3000 Boulder CO 80307-3000 Email sfw@ucar.edu 303-497-8164 (voice) 970-491-8293 (fax) Specific Network Information: Bob Swinford Bob.Swinford@epa.state.il.us 1.0 DATA SET OVERVIEW This data set contains hourly resolution surface meteorological data from the Illinois Environmentral Protection Agency Bureau of Air Air Monitoring Network. These stations are located throughout the state of Illinois. This data set covers the period from 20 May to 7 July 2003. The data are in delimited ASCII format. 2.0 INSTRUMENT DESCRIPTION AND STATION LOCATIONS 2.1 Instrument Description Information on the instrumentation may be found at the Illinois Air Monitoring Network web page: http://www.epa.state.il.us/air/ 2.2 Station Locations County Site AIRS Code Structure Bldg Ht (m) Long Lat Elev (m) ------------------------------------------------------------------------------------------------------------------------ Adams Quincy 170010006 Stand 6 91:24:15.38 39:55:58.02 183 Cook Alsip 170310001 Stand 8 87:43:57.33 41:40:14.96 188 Cook Chicago-Com Ed 170310076 Stand 3 87:42:49.48 41:45:04.93 186 Cook Chicago-Jardine 170310072 10 m Tower NA 87:36:27.34 41:53:45.07 181 Cook Bedford Park 170311018 Stand 4 87:48:54.95 41:46:25.55 186 Cook Schiller Park 170313103 Stand 3 87:52:34.60 41:57:54.91 195 Cook Northbrook 170314201 Stand 5 87:47:57.14 42:08:24.47 198 Cook Evanston 170317002 Stand 7 87:40:26.93 42:03:42.43 183 DuPage Lisle 170436001 Stand 11 88:04:22.06 41:48:46.74 206 LaSalle Oglesby 170990007 Stand 3 89:02:57.27 41:17:35.25 183 Lake Zion 170971007 10 m Tower NA 87:48:36.09 42:48:03.13 178 Macon Decatur 171150013 Stand 3 88:55:31.94 39:52:00.80 204 Macoupin Nilwood 171170002 10 m Tower NA 89:48:34.39 39:23:46.02 201 Madison Edwardsville 171192007 10 m Tower NA 90:02:22.71 38:47:35.92 134 Peoria Peoria 171430024 Stand 3 89:36:24.72 40:41:14.98 155 Rock Island Rock Island 171613002 Stand 4 90:31:02.06 41:30:52.61 171 St. Clair East St. Louis 171630010 Stand 3 90:09:37.46 38:36:43:63 125 Sangamon Springfield 171670006 Stand 4 89:35:26.67 39:48:02.60 171 Will Braidwood 171971011 10 m Tower NA 88:11:27.37 41:13:17.73 181 Winnebago Loves Park 172012001 Stand 6 89:02:16.79 42:20:05.95 224 Your order also contains the file WSWDsites.xls. 3.0 DATA COLLECTION AND PROCESSING Information on the collection and processing of these data can be found at the Illinois Air Monitoring network page: http://www.epa.state.il.us/air/ UCAR/JOSS conducted no processing or quality control on these data. 4.0 DATA FORMAT AND FILE NAMING 4.1 Data Format The data comes in two files: MET2003.txt which contains the meteorological parameters excluding the winds. WSWD2003.txt which contains the wind parameters. The files are semi-colon delimited. The first field is site information (see attached EXCEL file), the second field is parameter information with the 1st 5 numbers as follows: ws 61103, wd 61104, temp 62101, BP 64101, and RH 62201, the third field is date (yr,mo,da order), ignore fourth field and the 24 hours of data are the rest of the record. Hours are referenced to start of the hour in CST. The units are wd degrees compass, ws mph, temp deg C, BP mbar, and RH %. 4.2 File Naming conventions No conventions. 5.0 DATA REMARKS None. 6.0 REFERENCES None.