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  • IMAPP - CIMSS
    process IMAPP direct broadcast binary calibration and geolocation AMSR E data into an AMSR E Soil Moisture product in HDF EOS point vdata format This software is a modified version of the standard Soil Moisture software used to produce the official products distributed by the NSIDC DAAC Very good documentation can be found at the NSIDC AE Land Product website including references describing the algorithm the algorithm developers and the

    Original URL path: http://cimss.ssec.wisc.edu/imapp/amsre_sm.shtml (2012-11-14)
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  • IMAPP - CIMSS
    needed to process IMAPP direct broadcast binary calibration and geolocation AMSR E data into a Snow Water Equivalent SWE product in HDF EOS format Output values are stored as byte values scaled by 2 multiply value by 2 to get SWE in mm on a 25 km Equal Area Scalable Earth Grid EASE Grid The software uses the AMSR E B05 science algorithm to produce the retrievals The DAAC provides

    Original URL path: http://cimss.ssec.wisc.edu/imapp/amsre_swe.shtml (2012-11-14)
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  • IMAPP - CIMSS
    standard model output fields of pressure temperature moisture winds and precipitation as well as forecast satellite imagery IR window 11 micron brightness temperatures at 16 km resolution at 3 hour intervals out to 48 hours in grib2 format WMO standard The installation of the software begins with a one time set up to define the center of the domain recommended to be the center of the coarse model domain The nested model can then be executed once the coarse mesh DBCRAS model has begun There is a replacement script available for the DBCRAS coarse model that will launch the nest model automatically in background The forecast can then be executed twice per day at the synoptic times of 00 and 12 UTC This is a linux only binary release that requires an additional 700 MB of disk space to the original DBCRAS coarse mesh grid To download the coarse mesh 48 km DBCRAS model please see the IMAPP DBCRAS information page at http cimss ssec wisc edu imapp dbcras v1 0 shtml Product animations are created automatically using McIDAS X see below and ImageMagick If you do not have ImageMagick installed then the software will still create individual static product

    Original URL path: http://cimss.ssec.wisc.edu/imapp/dbcras_nest_v1.0.shtml (2012-11-14)
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  • IMAPP - CIMSS
    CentOS5 32 bit and 64 bit and compatible systems running Linux 2 6 kernels or later including Perl 5 6 or later A reliable and efficient internet connection to download the required ancillary data consisting of Global Forecast System GFS numerical weather prediction files The downloads are done automatically as part of the IDEA I execution MODIS aerosol optical depth files MOD04 files in either IMAPP or NASA GSFC naming conventions a1 or t1 mod04 hdf or MYD04 or MOD04 L2 hdf The direct broadcast IMAPP MODIS Level 2 package includes the software to create these products MODIS cloud top properties product files in either IMAPP or NASA GSFC naming conventions a1 or t1 mod06ct hdf or MYD06 or MOD06 L2 hdf The direct broadcast IMAPP MODIS Level 2 package includes the software to create these products To view your IDEA I website and animations from a web browser a web server must be running on your computer An example IDEA I web implementation over the USA can be viewed at http cimss ssec wisc edu imapp idea i terra Execution time varies but on a modestly configured modern desktop computer and for a typical direct broadcast capture domain execution

    Original URL path: http://cimss.ssec.wisc.edu/imapp/ideai_v1.0.shtml (2012-11-14)
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  • IMAPP - CIMSS
    easily Archiving of all products files is now available with optional HDF4 internal GZIP compression Windows installer is now a self extracting archive Multiple bug fixes Features of the IMAPP Virtual Appliance Can be installed configured and be ready to start processing data within 10 minutes of completing download Designed to be easy to modify maintain and upgrade Features the latest versions of all available Terra and Aqua DB processing packages including MODISL1DB v1 7 IMAPP MODIS v2 1 and SeaDAS 6 2 Preconfigured with MODIS Level 1 and IMAPP Atmosphere software installed and ready to run Other DB processing packages can be added or removed by editing one configuration file and then running an installer script Highly reliable and fault tolerant and is fast and efficient on modest computer hardware Supports automated ingest and processing of Level 0 PDS files from a local directory or a remote anonymous FTP site Implemented entirely in bash scripts Based on 10 years of experience with three generations of Terra and Aqua processing systems at SSEC where more than 25 000 Terra and Aqua passes have been acquired and processed in real time Uses only freely available software and is licensed under the terms of the GNU GPL Supported Products and Processing Software MODIS Level 1B Products created by MODISL1DB from the NASA Ocean Biology Processing Group Level 0 quicklook images visible and infrared in sensor projection in JPEG format Level 1B 1KM HKM and QKM radiances and Geolocation Destriping corrections for MODIS Level 1B 1KM radiances MODIS Atmosphere Level 2 Products created by IMAPP from the University of Wisconsin Madison Cloud Mask Cloud Top Pressure Cloud Optical Depth and Effective Radius Aerosol Optical Depth Temperature and Water Vapor Profiles Total Column Precipitable Water Vapor Infrared Day Night Total Column Ozone Total Column

    Original URL path: http://cimss.ssec.wisc.edu/imapp/imapp_va_v1.1.shtml (2012-11-14)
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  • AERI
    thunderstorm outflow boundaries These temperature and moisture vertical retrievals provide data for stability index monitoring planetary boundary layer research mesoscale model initialization verification and nowcasting The AERI instrument is also used in the Department of Energy s Atmospheric Radiation Measurement ARM program More Information References Cloud Retrieval Ground based AERI and Raman Lidar measurements are used to infer cirrus cloud absorption optical depth and effective particle size The high spectral

    Original URL path: http://cimss.ssec.wisc.edu/aeri/science/ (2012-11-14)
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  • AERI
    foreoptics consist of a scene mirror and two calibration blackbodies These blackbodies are essential to provide a well known stable hot and ambient temperature reference for calibration of the downwelling skyview radiances A typical measurement cycle consists of a three minute sky dwell period followed by two minute dwell periods for each of the blackbodies While the interferometer acquires an uncalibrated spectrum every two seconds averaging reduces the radiometric noise in the measurements The temperature of one of the blackbodies is fixed at 60 oC while the other fluctuates with the ambient temperature Figure 1 The AERI instrument deployed at the DOE ARM SGP CART site Both of the AERI calibration reference sources are high emissivity blackbody cavities containing highly accurate temperature sensors Calibration error analysis shows that for an instrument that must operate within an ambient atmospheric environment the extrapolation of the hot ambient calibration to the coldest ambient scene temperatures has a comparable accuracy to a calibration that makes use of a stable cold target e g liquid nitrogen This is because the temperature and emissivity uncertainty in reference cavities operated at or above ambient temperature can be made much smaller than those typically operated below the dewpoint temperature Since the AERI system performs a self calibration every 10 minutes before and after each sky view any temperature drifts in the ambient blackbody or the internal instrument temperature are accurately accounted for One of the advantages of using an ambient calibration point is that much of the emission the AERI measures is radiating from the atmosphere near the environmental ambient temperature This means that the emission from near the surface is measured very precisely with the AERI instrument This hot ambient approach greatly simplifies the operations of the instrument by removing the requirement for large amounts of liquid

    Original URL path: http://cimss.ssec.wisc.edu/aeri/instrument/ (2012-11-14)
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  • AERI -- Publications
    R A Ferrare 2000 Continuous Water Profiles from Operational Ground based Active and Passive Remote Sensors Bull Amer Meteor Soc 81 1301 1317 Weckwerth T M D B Parsons S E Koch J Moore M A LeMone C Flamant B Geerts J Wang W F Feltz 2003 An Overview of the International H2O Project IHOP 2002 and Some Preliminary Highlights Bull Amer Meteor Soc 85 253 277 Cloud Retrieval Back to top Collard A D S A Ackerman W L Smith X Ma H E Revercomb R O Knuteson and S C Lee 1995 Cirrus Cloud Properties Derived from High Spectral Resolution Infrared Spectrometry during FIRE II Part III Ground Based HIS Results Journal of the Atmospheric Sciences 52 4264 4275 DeSlover DH WL Smith PK Piironen and EW Eloranta A methodology for measuring cirrus cloud visible to infrared spectral optical depth ratios J Atmos Oceanic Technol 16 251 262 Turner D D submitted Arctic mixed phase cloud properties from AERI observations part I Theory and Simulations J Appl Meteor Turner D D submitted Arctic mixed phase cloud properties from AERI observations part II Results from SHEBA J Appl Meteor Turner D D S A Ackerman B A Baum H E Revercomb and P Yang 2003 Cloud phase determination using ground based AERI observations at SHEBA Journal of Applied Meteorology 42 701 715 IR Modeling Back to top Tobin D C and coauthors Downwelling spectral radiance observations at the SHEBA ice station water vapor continuum measurements from 17 to 26 um JGR 104 2081 2092 D D Turner D C Tobin S A Clough P D Brown R G Ellingson M J Mlawer R O Knuteson H E Revercomb T R Shippert and W L Smith submitted The QME AERI LBLRTM A closure experiment for downwelling high spectral resolution infrared

    Original URL path: http://cimss.ssec.wisc.edu/aeri/publications/ (2012-11-14)
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