gov.noaa.class:IASI_L2 DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 20080501 profile Camp Springs, Maryland, USA. DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI Infrared Atmospheric Sounding Interferometer Information about IASI level 1C, level 2 and cloud cleared radiance data archived and distributed at CLASS. information http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI Infrared Atmospheric Sounding Interferometer Search IASI level 1C, level 2 and cloud cleared radiance data archived and distributed at CLASS. search gov.noaa.class:IASI_L2 The IASI level 2 files are NOAA-unique retrieval products generated from the IASI level 1C, AMUS-A , and MHS data files aboard the MetOp series of satellites. The level 2 product contains profiles of temperature, water vapor, and trace gases (CO2, CO, O3, CH4, N2O, SO2, HNO3). The IASI retrieval footprint is derived from the IASI field of regard consisting of the 2X2 field of view cluster collocated to the AMSU-A and MHS fields of regard. The products are generated as ~3 minute granule files. Therefore, there are 480 granule data files per day. These files are in NetCDF format. For temperature, moisture, and trace gas data assimilation into numerical weather prediction models and climate reprocessing. DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 20080501 IASI_UM_2.0.doc Version 2, Release 0 Camp Springs, Maryland, USA. DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce http://www.star.nesdis.noaa.gov/smcd/spb/iosspdt/qadocs/IASI_UM_2.0.doc IEEE Transactions On Geoscience and Remote Sensing 20030201 Volume 41, Number 2 Authors: J. Susskind, C.D. Barnet, and J.M. Blaisdell. Granules start ascending and end ascending 20080501 Present ground condition In work Expected to be every 176 or 184 seconds -180 180 90 -90 Level 2 DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 20070201 Author: Chris Barnet ftp://ftp.orbit.nesdis.noaa.gov/pub/smcd/spb/cbarnet/reference/airsb_code.pdf ISO 19115 Topic Category climatologyMeteorologyAtmosphere NASA/GCMD Earth Science Keywords Earth Science > Atmosphere > Atmospheric Chemistry > Trace Gases Earth Science > Atmosphere > Atmospheric Temperature > Temperature Profiles Earth Science > Atmosphere > Atmospheric Water Vapor > Water Vapor Profiles Earth Science > Atmosphere > Clouds > Cloud Emissivity Earth Science > Atmosphere > Clouds > Cloud Liquid Water/Ice Earth Science > Atmosphere > Clouds > Cloud Reflectance Earth Science > Atmosphere > Clouds > Cloud Top Pressure Earth Science > Atmosphere > Precipitation > Liquid Water Equivalent Earth Science > Land Surface > Land Temperature > Skin Temperature Earth Science > Land Surface > Surface Radiative Properties > Emissivity Earth Science > Land Surface > Surface Radiative Properties > Reflectance Earth Science > Land Surface > Topography Earth Science > Spectral/Engineering > Infrared Wavelengths Earth Science > Spectral/Engineering > Microwave None land fraction cloud top fraction EPS > EUMETSAT Polar System Meteorological Operational Satellite - A METOP-A Infrared Atmospheric Sounding Interferometer IASI 3 1 8.26 - 15.5 micrometers 2 5.0 - 8.26 micrometers 3 3.26 - 5.0 micrometers None None DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce physical address

5211 Auth Road, Suite 204

Camp Springs Maryland 20746 USA 301-316-5007 301-763-8580 gov.noaa.class:IASI gov.noaa.class:IASI_L1C gov.noaa.class:IASI_L2 gov.noaa.class:IASI_CCR Level 1C and Level 2 granule data derived from IASI instrument. All the input IASI data are processed from level-0 to level-1C at EUMETSAT. All the AMSU-A and MHS data are processed from level-0 to level-1B at NOAA. Both agencies generate quality flags for their data. The NOAA IASI product processing system receives these input data and generates retrieved profiles of temperature, moisture and trace gases on the IASI fields of regard. The quality of the retrieval is assigned a quality flag. The retrieval algorithm is described in the following document: Off-line Retrieval Notes Chris Barnet, NOAA/NESDIS/STAR Feburary 1, 2007 ftp://ftp.orbit.nesdis.noaa.gov/pub/smcd/spb/cbarnet/reference/airsb_code.pdf The files are granules of data. Granules alternate in size between 22 and 23 scan lines. A scan is 8 seconds in length. Each scan contains the data for 30 fields of view. The orignal IASI fields of regard contain 4 fields of view. These are used by the IASI retrieval to generate 1 set of temperature, moisture, and trace gas profiles on the IASI field of regard. All input microwave and infrared data must be present for the retrieval to run. If data are not present, missing values are inserted into the record in the file. Missing values may be the result of transmission or processing errors. EUMETSAT > European Meteorological Satellite Organisation 20070227 http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI gov.noaa.class:IASI Electronic computer data file 20080501 Present ground condition EUMETSAT IASI L1C Data These data were generated by EUMETSAT DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce 20070101 Electronic computer data file 20080501 Present ground condition AMSU-A L1B Data All AMSU-A data are generated operationally at OSDPD DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce 20070101 Electronic computer data file 20080501 Present ground condition MHS L1B Data All MHS data are generated operationally at OSDPD IASI L1C input granule data are geolocated, calibrated, and appodized at EUMETSAT IASI Level 1B unapodized granule data Not complete IASI L1C granule data EUMETSAT > European Meteorological Satellite Organisation physical address

Am Kavalleriesand 31

Darmstadt Hessen D-64295 Germany +49 6151 807345 +49 6151 807538 FR/CNES > Centre National d'Etudes Spatiales, France 20070701 FR/CNES > Centre National d'Etudes Spatiales, France 20030110 Author: D. Blumstein IA-DF-0000-2006 Ed: 4 Rev: 2 Not available Unknown AMSU-A and MHS input orbital data are geolocated and calibrated at NOAA/NESDIS/OSDPD AMSU-A Level 1A uncalibrated orbital data MHS Level 1A uncalibrated orbital data 20080319 AMSU-A L1B orbital data DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce physical address

NOAA Satellite Operations Facility

Suitland Maryland 20746 USA 301-763-8142 x185 301-899-9196 DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce 20070515 DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce 20000701 http://www2.ncdc.noaa.gov/docs/klm/index.htm Not available Unknown IASI L2 granule data are generated at NOAA/NESDIS/OSDPD AMSU-A L1B input orbital data MHS L1B input orbital data IASI L1C granule data Not complete IASI L2 granule data DOC/NOAA/NESDIS/OSDPD > Office of Satellite Data Processing and Distribution, NESDIS, NOAA, U.S. Department of Commerce physical address

NOAA Satellite Operations Facility

Suitland Maryland 20746 USA 301-763-8142 x185 301-899-9196 DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 20080215 DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce 20070201 Author: Chris Barnet ftp://ftp.orbit.nesdis.noaa.gov/pub/smcd/spb/cbarnet/reference/airsb_code.pdf Initial release of the NOAA IASI retrieval algorithm. It generates profiles of temperature, water vapor, ozone, carbon dioxdie, nitrous oxide, carbon monoxide, methane, nitric acid, sulfur dioxide. It also generates cloud and surface emissivities and the cloud cleared radiances. 20080215 DOC/NOAA/CLASS > Comprehensive Large Array-data Stewardship System, NOAA, U.S. Department of Commerce mailing and physical

151 Patton Avenue

Asheville NC 28801-5001 (828) 271-4850 x3183 (828) 271-4328 info@class.noaa.gov 9 - 5 EST Disclaimer - While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, 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. netCDF netCDF 3.6.1 http://www.star.nesdis.noaa.gov/smcd/spb/iosspdt/qadocs/IASI_ICD_2.0.doc The IASI L2 profile netCDF granule data files contain: (1) Temperature profiles at 100 levels. (2) Water vapor and liquid water profiles at 100 levels. (3) Mixing ratios at 100 levels of ozone, carbon dioxide, methane, carbon monoxide, sulfur dioxide, nitric acid, and nitrous oxide). (4) Surface properties (Skin temperature, IR surface emissivities and reflectivity, microwave surface emissivity, topography, and land fraction). (5) Cloud properties (cloud top pressure, cloud top fraction, cloud IR emissivity and reflectivity, and ice/liquid flag). (6) All associated navigation and temporal information for the observations (Latitude, Longitude, View Angle). (7) A quality control flag indicating the status of the success of the retrieval algorithm on a field of regard basis. For each L2 granule data file NOAA/NESDIS/STAR will generate and associated eXtensible Markup Language (XML) format metadata file. http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI http://www.class.noaa.gov/saa/products/search?sub_id=0&datatype_family=IASI Infrared Atmospheric Sounding Interferometer Download options for IASI level 1C, level 2 and cloud cleared radiance data archived and distributed at CLASS. download CD-ROM n/a DVD n/a IBM LTO Tape n/a Generations 1, 2 and 3 Electronic download (FTP) of the data is free. There is a fee for copies of data on physical media. Optical disks are $25.00 per unit and magnetic tape is $100 per unit. Price does not include additional service and handling costs. The option to order data for shipping will occur at the order checkout stage, from which you will then proceed to another NOAA site to provide shipping and billing addresses and credit card information. Contact the CLASS Help Desk (info@class.noaa.gov) for instructions for payment by other means. Delivery of physical media occurs within 1 to 2 weeks, but may take longer for large orders. 20080501 Present 20081009 20080407 20090401 DOC/NOAA/NESDIS/STAR/SMCD > Satellite Meteorology and Climatology Division, Center for Satellite Applications and Research, NESDIS, NOAA, U.S. Department of Commerce physical address

5211 Auth Road, Suite 204

Camp Springs Maryland 20746 USA 301-316-5007 301-763-8580 Content Standards for Digital Geospatial Metadata: Extensions for Remote Sensing Metadata FGDC-STD-012-2002 universal time http://www.ngdc.noaa.gov/metadata/extensions/local_extensions.html NGDC Extensions to FGDC Metadata EPS > EUMETSAT Polar System EPS is Europe's first polar orbiting operational meteorological satellite system, and it is the European contribution to the Initial Joint Polar-Orbiting Operational Satellite System (IJPS). This is an agreement between EUMETSAT and NOAA. In this joint European-US polar satellite system, EUMETSAT has the operational responsibility for the "morning orbit" with the MetOp satellites. EUMETSAT is responsible for the definition of the overall EPS system, the development and operations of the ground segment, and for the operation of the whole system. 2006 EUMETSAT and NOAA signed an agreement to collaborate in the Initial Joint Polar System (IJPS), comprising two polar orbiting satellite systems and their respective ground segments. The EPS programme consists of a series of three Meteorological Operational (MetOp) satellites, to be flown successively for more than 14 years. 1998 METOP-A launched. Instruments: A/DCS, AMSU-A1, AMSU-A2, ASCAT, AVHRR, GOME-2, GRAS, HIRS, IASI, MHS, SARP-3, SARR and SEM. 20061019 METOP-A operational. 20070521 METOP-A > Meteorological Operational Satellite - A 20070521 EUMETSAT > European Meteorological Satellite Organization NOAA POES > NOAA Polar Orbiting Environmental Satellites IJPS > Initial Joint Polar-Orbiting Operational Satellite System MetOp-A (MetOp-2) Launched: October 19, 2006. Dates of Operation: May 21, 2007 - Present. Instruments: A/DCS, AMSU-A1, AMSU-A2, ASCAT, AVHRR, GOME-2, GRAS, HIRS, IASI, MHS, SARP-3, SARR and SEM. Orbit: Sun-synchronous orbit 09.30 mean local solar time (Equator crossing, descending node), morning satellite. Mission Duration: Expected to be operational for 4.5 to 5 years operational. The NOAA satellites are deployed in "afternoon" orbits and MetOp will take up service in a "morning" orbit. NOAA and EUMETSAT will operate and control their respective polar-orbiting satellites and ground segments. However, data collected by all the satellites will be shared and exchanged between NOAA and EUMETSAT. Under the Initial Joint Polar-orbiting Operational Satellite System (IJPS) agreement between NOAA and EUMETSAT, both parties will cooperatively provide blind orbit coverage and emergency support for global data retrieval as well as for command and telemetry services. IASI > Infrared Atmospheric Sounding Interferometer Infrared Michaelson Interferometer sounder degrees milliseconds kilometers degrees along scan 3.33 along track 3.33 degrees 0.83 Each band is assigned a scale factor. To obtain a radiance within a given band, divide that radiance by 10 raised to the power n, where n is the scale factor for the band. 3 Wavelength is actually given as wavenumber in the unit 1/meters. (In the EUMETSAT data file the channels are defined as wavenumber, not wavelength). 121065.37 64516.13 Wavelength is actually given as wavenumber in the unit 1/meters. (In the EUMETSAT data file the channels are defined as wavenumber, not wavelength). 200000 121065.37 Wavelength is actually given as wavenumber in the unit 1/meters. (In the EUMETSAT data file the channels are defined as wavenumber, not wavelength). 276243.09 200000