SSM/I > Special Sensor Microwave/Imager |
(MI_Instrument) uuid: 8293FAD4B87075F2E040AC8C5AB4576F citation: (CI_Citation) title: SSM/I- Microwave Imager date: (CI_Date) date: unknown dateType: (CI_DateTypeCode) publication identifier: (MD_Identifier) code: gov.noaa.ngdc.fgdccitation:25112 citedResponsibleParty: (CI_ResponsibleParty) individualName: User Services organisationName: DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce contactInfo: (CI_Contact) phone: (CI_Telephone) voice: (303) 497-6826 facsimile: (303) 497-6513 address: (CI_Address) deliveryPoint: NOAA/NESDIS/NGDC E/GC 325 Broadway city: Boulder administrativeArea: CO postalCode: 80305-3328 country: USA electronicMailAddress: ngdc.info@noaa.gov hoursOfService: 7:30 - 5:00 Mountain role: (CI_RoleCode) originator identifier: (MD_Identifier) code: SSM/I > Special Sensor Microwave/Imager type: imager description: Instrument Type: imager, Operational Mode: , Collection Type: conical scan, Other Information: The instrument sweeps a 450 cone around the satellite velocity vector so that the Earth incidence angle is always 540. Data are recorded during the 102.40 of the cone when the antenna beam intercepts the Earth's surface. The channel footprint varies with channel energy, position in the scan, along scan or along track direction and altitude of the satellite. The 85 GHz footprint is the smallest with a 13 x 15 km and the 19 GHz footprint is the largest at 43 x 69 km. Because the 85 GHz footprint is so small, it is sampled twice as often, i.e., 128 times a scan. One data cycle consists of 4 85 GHz scans and 2 scans of the 19, 22 and 37 GHz channels. The complete cycle takes 28 seconds and it must be complete to process the data. |