If you are interested in preliminary values, please contact Robert Evans (303) 497-6679. Help with basic observaion questions may be covered here in our FAQ document. The values in the "select files" have been published and are kept in appropriately named directories. A key to the data has been provided. If you have questions about the data processing or specific data requests, please contact Dorothy Quincy (303) 497-6968. The total ozone values compiled here have been separated into web pages by observation site. The data on each page has been separated into files by year. Unless otherwise stated, the data has been processed using 1992 Bass-Paur coefficients. Information
Station # Instrument # Latitude Longitude Time Zone Location AMS 111 80&82 S 89 59' 24" W 24 48' 00" 0 (GMT) Amundsen-Scott South Pole Station, ANTARCTICA BDR 67 61 N 39 59' 27" W 105 15' 38" 7 (Mountain) Boulder, Colorado, USA (at N 40 01' 00" W 105 15' 00" prior to April 1999) BIS 19 33 N 46 46' 00" W 100 45' 00" 6 (Central) Bismarck, North Dakota, USA BNA 106 79 N 36 14' 49" W 86 33' 41" 6 (Central) Nashville, Tennessee, USA BRW 199 91 N 71 19' 24" W 156 36' 24" 9 (Alaskan) Barrow, Alaska, USA CAR 20 34 N 46 52' 00" W 68 01' 00" 5 (Eastern) Caribou, Maine, USA FBK 105 63 N 64 51' 35" W 147 50' 50" 9 (Alaskan) Fairbanks, Alaska, USA (previously POK) POK 217 63 N 65 07' 45" W 147 28' 58" 9 (Alaskan) Poker Flat, Alaska, USA (moved to FBK during winter '92-'93) HNX 341 94 N 36 18' 50" W 119 37' 56" 8 (Pacific) Hanford, California, USA (previously FAT) FAT 244 94 N 36 46' 00" W 119 43' 00" 8 (Pacific) Fresno, California, USA (moved to HNX on March 15, 1995) LDR 256 72 S 45 2' 34" E 169 40' 48" -12 Lauder, NEW ZEALAND MPO 429 87 S 11 24' 03" W 76 19' 26" 5 Marcapomacocha, PERU (previously HUA) HUA 110 87 S 12 02' 59" W 75 19' 00" 5 Huancayo, PERU (moved to MPO) MLO 31 76 N 19 32' 00" W 155 34' 42" 10 (Hawaiian) Mauna Loa Observatory, Hawaii, USA OHP 40 85 N 43 55' 48" E 5 42' 36" -1 l'Observatoire de Haute Provence, FRANCE PTH 159 81 S 31 55' 32" E 115 57' 32" -8 Perth, Western Australia, AUSTRALIA SMO 191 42 S 14 15' 08" W 170 33' 46" 11 (Samoa) Samoa Observatory, Tutuila Island, American Samoa, USA TAL 79 58 N 30 26' 00" W 84 20' 00" 5 (Eastern) Tallahassee, Florida, USA WAI 107 38 N 37 51' 34" W 75 30' 38" 5 (Eastern) Wallops Island, Virginia, USAThere are several types of total ozone observations that may be reported in the data files.
ADDS -- A-D wavelength direct-sun (most reliable) CDDS -- C-D wavelength direct-sun ADZB -- A-D wavelength zenith blue-sky ADZC -- A-D wavelength zenith cloudy-sky (least reliable) ADDSFI -- A-D wavelength focussed image of sun CDDSFI -- C-D wavelength focussed image of sun ADRMFI -- A-D wavelength focussed image of full moon CDRMFI -- C-D wavelength focussed image of smaller moon