MODIS/Terra Calibrated Radiances 5-Min L1B Swath 1km Collection 004 and 005

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: MCST Team
Publication_Date: Unknown
Title: MODIS/Terra Calibrated Radiances 5-Min L1B Swath 1km Collection 004 and 005
Edition: Collection 005
Geospatial_Data_Presentation_Form:
Series_Information:
Series_Name:
Issue_Identification: MOD021KM
Publication_Information:
Publication_Place:
Publisher:
Other_Citation_Details:
Online_Linkage: http://modaps.nascom.nasa.gov/services/about/products/MOD021KM.html
Description:
Abstract:
The MODIS Level 1B data set contains calibrated and geolocated at-aperture radiances for 36 discrete bands located in the 0.4 to 14.4 micron region of electromagentic spectrum. These data are generated from the MODIS Level 1A scans of raw radiance and in the process converted to geophysical units of W/(m^2 um sr). In addition, the Earth Bi-directional Reflectance Distribution Function (BRDF) may be determined for the solar reflective bands (1-19, 26) through knowledge of the solar irradiance (e.g., determined from MODIS solar diffuser data, and from the target illumination geometry). Additional data are provided including quality flags, error estimates and calibration data. Visible, shortwave infrared, and near infrared measurements are only made during the daytime, while radiances for the thermal infrared region (bands 20-25, 27-36) are measured continuously. Channel locations for MODIS are as follows: Band Center Wavelength (um) Primary Use ---- ---------------------- ----------- 1 0.620 - 0.670 Land/Cloud Boundaries 2 0.841 - 0.876 Land/Cloud Boundaries 3 0.459 - 0.479 Land/Cloud Properties 4 0.545 - 0.565 Land/Cloud Properties 5 1.230 - 1.250 Land/Cloud Properties 6 1.628 - 1.652 Land/Cloud Properties 7 2.105 - 2.155 Land/Cloud Properties 8 0.405 - 0.420 Ocean Color/Phytoplankton 9 0.438 - 0.448 Ocean Color/Phytoplankton 10 0.483 - 0.493 Ocean Color/Phytoplankton 11 0.526 - 0.536 Ocean Color/Phytoplankton 12 0.546 - 0.556 Ocean Color/Phytoplankton 13 0.662 - 0.672 Ocean Color/Phytoplankton 14 0.673 - 0.683 Ocean Color/Phytoplankton 15 0.743 - 0.753 Ocean Color/Phytoplankton 16 0.862 - 0.877 Ocean Color/Phytoplankton 17 0.890 - 0.920 Atmospheric Water Vapor 18 0.931 - 0.941 Atmospheric Water Vapor 19 0.915 - 0.965 Atmospheric Water Vapor 20 3.660 - 3.840 Surface/Cloud Temperature 21 3.929 - 3.989 Surface/Cloud Temperature 22 3.929 - 3.989 Surface/Cloud Temperature 23 4.020 - 4.080 Surface/Cloud Temperature 24 4.433 - 4.498 Atmospheric Temperature 25 4.482 - 4.549 Atmospheric Temperature 26 1.360 - 1.390 Cirrus Clouds 27 6.535 - 6.895 Water Vapor Profile 28 7.175 - 7.475 Water Vapor Profile 29 8.400 - 8.700 Water Vapor Profile 30 9.580 - 9.880 Ozone Overburden 31 10.780 - 11.280 Surface/Cloud Temperature 32 11.770 - 12.270 Surface/Cloud Temperature 33 13.185 - 13.485 Cloud Top Altitude 34 13.485 - 13.785 Cloud Top Altitude 35 13.785 - 14.085 Cloud Top Altitude 36 14.085 - 14.385 Cloud Top Altitude Channels 1 and 2 have 250 m resolution, channels 3 through 7 have 500 m resolution, and the rest have 1 km resolution. However, for the MODIS L1B 1 km product, the 250 m and 500 m band radiance data and their associated uncertainties have been aggregated to 1 km resolution. Thus the entire channel data set is referenced to the same spatial and geolocation scales. Separate L1B products are available for the 250 m channels (MOD02QKM) and 500 m channels (MOD02HKM) that preserve the original resolution of the data. Spatial resolution for pixels at nadir is 1 km, degrading to 4.8 km in the along-scan direction at the scan extremes. However, thanks to the overlapping of consecutive swaths and respectively pixels there, the resulting resolution at the scan extremes is about 2 km. A 55 degree scanning pattern at the EOS orbit of 705 km results in a 2330 km orbital swath width and provides global coverage every one to two days. A single MODIS Level 1B granule will nominally contain a scene built from 203 scans (or swaths) sampled 1354 times in the cross-track direction, corresponding to approximately 5 minutes worth of data. Since an individual MODIS scan (or swath) will contain 10 along-track spatial elements, the scene will be composed of (1354 x 2030) pixels, resulting in a spatial coverage of (2330 km x 2030 km).Due to the MODIS scan geometry, there will be increasing overlap occurring beyond about 25 degrees scan angle. To summarize, the MODIS L1B 1 km data product consists of: 1. Calibrated radiances and uncertainties for (2) 250 m reflected solar bands aggregated to 1 km resolution 2. Calibrated radiances and uncertainties for (5) 500 m reflected solar bands aggregated to 1 km resolution 3. Calibrated radiances and uncertainties for (13) 1 km reflected solar bands and (16) infrared emissive bands 4. Geolocation subsampled at every 5th pixel across and along track 5. Satellite and solar angles subsampled at the above frequency 6. Comprehensive set of file-level metadata summarizing the spatial, temporal and parameter attributes of the data, as well as auxiliary information pertaining to instrument status and data quality characterization Users requiring the full-resolution geolocation and solar/satellite geometry can obtain the separate MODIS Level 1 Geolocation product (MOD03) from LAADS. The MODIS L1B data are stored in the Earth Observing System Hierarchical Data Format (HDF-EOS) which is an extension of HDF as developed by the National Center for Supercomputer Applications (NCSA) at the University of Illinois. A typical file size will be approximately 260 MB. Environmental information derived from MODIS L1B measurements will offer a comprehensive and unprecedented look at terrestrial, atmospheric, and ocean phenomenology for a wide and diverse community of users throughout the world. (The Shortname for this product is MOD021KM) The V004 Program Executable (PGE), for MODIS Level 1B products, has gone through a series of revisions since the initial release of V4.0.0 in March of 2002. These include revisions to make it LINUX-compatible. The current version is V4.0.9, which does not contain changes to the code that affect scientific output. Below is a brief overview of changes that affect scientific output in previous versions (V4.0.0 to V4.0.7) of PGE code. The MCST web site, listed in the URL section of this DIF, has a more detailed version of this information, including revisions that do not affect scientific output. Significant changes to Look Up Tables (LUT) used in Level 1B processing have occurred. These include revising the Response-versus-Scan Angle (RVS) LUTs from listing the RVS corrections to listing the quadratic coefficients used in making the RVS correction. The coefficients are now calculated by interpolating on the granule collection time and the RVS corrections are then generated using the interpolated coefficients. Previously used Emissive and Reflective RVS LUT tables were eliminated and new ones introduced. An incorrect comparison between RVS coefficients for Thermal Emissivity Bands (TEB) and Reflective Solar Bands (RSB) was being made during the calculation of the RVS coefficients. This was replaced with a comparison between TEB coefficients. This error never resulted in an incorrect RVS correction but did lead to re-calculating the coefficients for each detector in a thermal band even if the coefficients were the same for all 10 detectors. A destriping algorithm for Band 26 devised by C. Moeller was implemented. A new time-dependent LUT was added which gives coefficients for a detector-specific cross-talk correction based on the aggregated Band 5 radiances. The Band 26 scaled integers are adjusted by the Band 5 correction term, which is the product of the Band 5 radiance times the ratio of the Band 5 to Band 26 scaling factors times the LUT correction value for that detector. In addition a new LUT which allows for a frame offset with regard to the Band 5 radiance was added. A LUT which switches the correction off or on was also added. Data set information: MODIS Homepage http://modis.gsfc.nasa.gov/data/dataprod/ and MODIS Characterization Support Team http://mcst.gsfc.nasa.gov/
Purpose:
Not Available
Supplemental_Information:
Not Available
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20000301
Ending_Date: Unknown
Currentness_Reference:Unknown
Status:
Progress: In Work
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -180.0
East_Bounding_Coordinate: 180.0
North_Bounding_Coordinate: 90.0
South_Bounding_Coordinate: -90.0
Keywords:
Theme:
Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS
Theme_Keyword_Thesaurus: GCMD PLATFORM
Theme_Keyword_Thesaurus: GCMD INSTRUMENT
Theme_Keyword_Thesaurus: PROJECT
Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS
Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY
Theme_Keyword_Thesaurus: DATA SET LANGUAGE
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED RADIANCE
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > REFLECTED INFRARED
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > THERMAL INFRARED
Theme_Keyword: EARTH SCIENCE > SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE RADIANCE
Theme_Keyword: TERRA > EARTH OBSERVING SYSTEM, TERRA (AM-1)
Theme_Keyword: MODIS > MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER
Theme_Keyword: DODS > DISTRIBUTED OCEANOGRAPHIC DATA SYSTEM
Theme_Keyword: EOSDIS > EARTH OBSERVING SYSTEM DATA INFORMATION SYSTEM
Theme_Keyword: OPENDAP > OPEN-SOURCE PROJECT FOR A NETWORK DATA ACCESS PROTOCOL
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: TERRA > EARTH OBSERVING SYSTEM (EOS), TERRA
Theme_Keyword: Brdf
Theme_Keyword: Calibrated
Theme_Keyword: Geolocated
Theme_Keyword: Nir
Theme_Keyword: Radiance
Theme_Keyword: Swir
Theme_Keyword: Tir
Theme_Keyword: Visible
Theme_Keyword: Opendap
Theme_Keyword: Eosdis
Theme_Keyword: Nrt
Theme_Keyword: Lance
Theme_Keyword: IMAGERY/BASE MAPS/EARTH COVER
Theme_Keyword: ENGLISH
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: GEOGRAPHIC REGION > GLOBAL
Place_Keyword: GEOGRAPHIC REGION > GLOBAL LAND
Place_Keyword: GEOGRAPHIC REGION > GLOBAL OCEAN
Place_Keyword: OCEAN > ATLANTIC OCEAN
Place_Keyword: OCEAN > PACIFIC OCEAN
Place_Keyword: OCEAN > INDIAN OCEAN
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: Two Day Repeat Observations With A Repeat Orbit Pattern Every 16 Days.
Temporal_Keyword: Daily - < Weekly
Access_Constraints: Not Available
Use_Constraints:
Not Available
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: LAADS USER SUPPORT TEAM
Contact_Person_Primary:
Contact_Person: MODAPS OPERATION TEAM
Contact_Position: TECHNICAL CONTACT
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: LAADS User Support Team
Address: 4801 Forbes Boulevard
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Voice_Telephone: 301-731-2917, 1-866-506-6347 (toll-free - US only)
Contact_Voice_Telephone: 301-731-2917, 1-866-506-6347 (toll-free - US only)
Contact_Facsimile_Telephone: 301-577-6622
Contact_Electronic_Mail_Address: modapsuso@sigmaspace.com
Contact_Electronic_Mail_Address: opsdist@sigmaspace.com
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
Not Available
Logical_Consistency_Report:
Not Available
Completeness_Report:
Not Available
Lineage:
Process_Step:
Process_Description:
Not Available
Process_Date: Unknown
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Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 1 km at nadir
Longitude_Resolution: 1 km at nadir
Geographic_Coordinate_Units: Decimal degrees
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/GSFC/SED/ESD/HBSL/BISB/LAADS > L1 and Atmosphere Archive and Distribution System,Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
Contact_Person: LAADS USER SUPPORT TEAM
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: LAADS User Support Team
Address: 4801 Forbes Boulevard
City: Lanham
State_or_Province: MD
Postal_Code: 20706
Country: USA
Contact_Voice_Telephone: 301-731-2917, 1-866-506-6347 (toll-free - US only)
Contact_Facsimile_Telephone: 301-577-6622
Contact_Electronic_Mail_Address: modapsuso@sigmaspace.com
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: NASA/GSFC/SED/ESD/HBSL/BISB/MODAPS > MODIS Adaptive Processing System, Biospheric Information Systems Branch, Hydrospheric and Biospheric Sciences Laboratory, Earth Sciences Division, Science and Exploration Directorate, Goddard Space Flight Center, NASA
Contact_Person: MODAPS OPERATION TEAM
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Voice_Telephone: 301-731-2917, 1-866-506-6347 (toll-free - US only)
Contact_Electronic_Mail_Address: opsdist@sigmaspace.com
Resource_Description: MOD021KM Collection 5
Resource_Description: MOD021KM Collection 4
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: HDF
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://ladsweb.nascom.nasa.gov/
Access_Instructions:
DATA CENTER URL
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modaps.nascom.nasa.gov
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ladsftp.nascom.nasa.gov/allData/5/MOD021KM
Access_Instructions:
Access Collection 5 data set MOD021KM from the LAADS FTP site
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ladsftp.nascom.nasa.gov/allData/4/MOD021KM/
Access_Instructions:
Access Collection 4 data set MOD021KM from the LAADS FTP site
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://ladsweb.nascom.nasa.gov/data/search.html
Access_Instructions:
LAADS Web. Search for all data in the Level 1 and Atmosphere Archive and Distribution System.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modaps.nascom.nasa.gov
Access_Instructions:
Web site for MODIS Collection 4 L1B and Geo data ordering
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://lance.nasa.gov/data-products/modis-products...
Access_Instructions:
Near real-time (NRT) data are available from MODAPS for certain Aqua and Terra MODIS L0, L1, L2, L2G, and L3 products. Whereas the standard MODIS forward processing acquires 2-hour L0 files for Aqua and Terra from EDOS within 7-8 hours of real time, LANCE-MODIS acquires session-based L0 files from EDOS and the end of the session is available within 10-30 minutes after real time.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://reverb.echo.nasa.gov/reverb/#utf8=%E2%9C%93...
Access_Instructions:
Refine your granule search with ECHO's next generation Earth Science discovery tool (Reverb) using information from this record.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modis.gsfc.nasa.gov/sci_team/
Access_Instructions:
MODIS Science Team
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://mcst.gsfc.nasa.gov/
Access_Instructions:
MODIS Characterization Support Team (MCST).
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://modis-atmos.gsfc.nasa.gov/
Access_Instructions:
MODIS Atmosphere Team
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
ftp://ladsftp.nascom.nasa.gov/README
Access_Instructions:
Readme regarding accessing MODIS data from the LAADS FTP server.
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://mcst.gsfc.nasa.gov/l1b/
Access_Instructions:
MODIS Characterization Support Team (MCST), Level 1B Product Information and Status Page
Fees: No Fee
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Metadata_Reference_Information:
Metadata_Date: 20060605
Metadata_Review_Date: 20130610
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: GANG YE, PH.D
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Contact_Voice_Telephone: 301-352-2109
Contact_Electronic_Mail_Address: gang.ye@sigmaspace.com
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time
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