MODIS Aggregate for Amazon Basin/Large Scale Biosphere-Atmosphere Experiment; MODIS/Terra Vegetation Indices 16-Day L3 Global 250m ISIN Grid, 1/1/03-1/1/05

Federal Geographic Data Committee (FGDC) Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: Unknown
Publication_Date: Unknown
Title: MODIS Aggregate for Amazon Basin/Large Scale Biosphere-Atmosphere Experiment; MODIS/Terra Vegetation Indices 16-Day L3 Global 250m ISIN Grid, 1/1/03-1/1/05
Description:
Abstract:
This dataset represents spatial aggregates of 13/14 or 6 tiles of the MODIS/Terra Vegetation Indices 16-Day L3 Global 250m ISIN Grid (MOD13Q1), as provided by the EROS Data Center (EDC). Only the Normalized Difference Vegetation Index (NDVI) layer and its associated quality layer have been aggregated at this time. This product is available for multiple days. The University of New Hampshire's (UNH) Earth Science Information Partner (ESIP), EOS-WEBSTER (http://eos-earthdata.sr.unh.edu/), has created this MODIS NDVI aggregate product from MOD13Q1 Daily VI tiles. MOD13Q1 data are provided every 16 days as a gridded level-3 product in the Integerized Sinusoidal projection. UNH has aggregated multiple tiles to create a large-region NDVI product, which can be spatially subset within the EOS-WEBSTER Search & Retrieve data ordering tool. Our system has also reprojected these data from the original Integerized Sinusoidal projection to Geographic, with a pixel resolution of 8.1 arc seconds. The NDVI aggregate product contains only two of the original 11 layers from the input products, plus an additional layer created by EOS- WEBSTER, which provides a look-up code to map each pixel in the aggregate back to its original input tile. These aggregate products allow the users of EOS-WEBSTER to subset MODIS NDVI data across tile boundaries and to customize the spatial region of interest using an on-line GUI interface. Data are also provided in a generic binary format (BSQ) with detailed header information, which can be read into most image or data processing applications. This product is broken into 2 logical holdings so that a user may order 1 or both of the band sets (holdings). The layers for this product are: 1) 16-day NDVI composite and 2) NDVI Quality. Version-4 input products were used to create these output files. Please see the Global Change Master Directory (GCMD) to learn more about the MOD13Q1 input data (http://gcmd.nasa.gov/getdif.htm?MOD13Q13). ADDITIONAL INFORMATION ABOUT MOD13Q1 from the Global Change Master Directory Listing for MOD13Q1: The MODIS Vegetation Indices (VI) are robust spectral measures of the amount of vegetation present on the ground. They involve transformations of the red (620-670 nanometers), near-infrared (841-876 nanometers), and blue (459-479 nanometers) bands designed to enhance the "vegetation signal" and allow for precise inter-comparisons of spatial and temporal variations in terrestrial photosynthetic activity. The VI products contain two indices, the Normalized Difference Vegetation Index (NDVI) and a new Enhanced Vegetation Index (EVI). Each MOD13Q1 product includes VI quality information in addition to composited surface reflectance bands 1-3 and 7 (i.e., the red, NIR, blue, and MIR bands [2105-2155 nanometers]). The NDVI output represents a "continuity index" to NOAA's existing AVHRR-derived NDVI. The EVI is MODIS-specific and offers improved sensitivity in high biomass regions and improved vegetation monitoring through a de-coupling of the canopy background signal and a reduction in atmospheric influences. A new compositing scheme is utilized, which reduces angular, Sun-target-sensor variations, using the Constrained View Maximum Value Composite (CV-MVC) and an option to use BRDF models. The two VIs complement each other in vegetation studies and improve upon the extraction of canopy biophysical parameters. Data Set Characteristics: Output format: BSQ with header Logical Data Holdings: 16-day NDVI: 1 band, 16 bit Integer NDVI Quality: 1 bit field band Input Tile Code: 1 band
Purpose:
Not Available
Supplemental_Information:
REFERENCE: National Aeronautics and Space Administration, 2000, MODIS data products catalog (EOS AM platform): [Greenbelt, Maryland], Goddard Space Flight Center.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20030101
Ending_Date: 20041231
Currentness_Reference:Unknown
Status:
Progress: Complete
Maintenance_and_Update_Frequency: As needed
Spatial_Domain:
Description_of_Geographic_Extent:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.0
East_Bounding_Coordinate: -34.0
North_Bounding_Coordinate: 10.0
South_Bounding_Coordinate: -20.0
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: EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION INDEX
Theme_Keyword: TERRA > EARTH OBSERVING SYSTEM, TERRA (AM-1)
Theme_Keyword: AQUA > EARTH OBSERVING SYSTEM, AQUA
Theme_Keyword: MODIS > MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER
Theme_Keyword: ESIP > EARTH SCIENCE INFORMATION PARTNERS PROGRAM
Theme_Keyword: Modis
Theme_Keyword: Eos-webster
Theme_Keyword: Unh
Theme_Keyword: University Of New Hampshire
Theme_Keyword: Lba
Theme_Keyword: Amazon Basin
Theme_Keyword: Imagery
Theme_Keyword: Nasa/esip
Theme_Keyword: Ndvi
Theme_Keyword: Normalized Difference Vegetation Index
Theme_Keyword: BIOTA
Place:
Place_Keyword_Thesaurus: GCMD
Place_Keyword: CONTINENT > SOUTH AMERICA
Temporal:
Temporal_Keyword_Thesaurus: GCMD
Temporal_Keyword: 16-day Composite
Access_Constraints: Data available to the general public.
Use_Constraints:
These data have no usage constraints or limitations, except to acknowledge the University of New Hampshire, EOS-WEBSTER Earth Science Information Partner (ESIP) as the data distributor for this dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: ANNETTE SCHLOSS
Contact_Position: TECHNICAL CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Complex Systems Research Center
Address: Morse Hall
Address: University of New Hampshire
City: Durham
State_or_Province: New Hampshire
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 603-862-0348
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: annette.schloss@unh.edu
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Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
This is a version-4 MODIS/Terra data product.
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: 0.00225 degrees
Longitude_Resolution: 0.00225 degrees
Geographic_Coordinate_Units: Decimal degrees
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Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: UNH/EOS/CSRC/EOS-EARTHDATA > EOS-EARTHDATA, Complex Systems Research Center, Institute for the Study of Earth, Oceans, and Space, Univ. of New Hampshire
Contact_Person: EARTH SYSTEMS RESEARCH CENTER
Contact_Position: DATA CENTER CONTACT
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Complex Systems Research Center
Address: Institute for the Study of Earth, Oceans, and Space
Address: Morse Hall
Address: University of New Hampshire
City: Durham
State_or_Province: New Hampshire
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 1-603-862-3785
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: eosearthdatasupport@foghorn.sr.unh.edu
Resource_Description: EOSWEBSTER_LBAVegMOD13Q1
Distribution_Liability:
Not Available
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: BSQ, netCDF, HDF-EOS,ASCII grid, GEOtiff
Transfer_Size: varies
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://eos-earthdata.sr.unh.edu/
Access_Instructions:
DATA CENTER URL
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
http://eos-earthdata.sr.unh.edu/data/
Access_Instructions:
EOS-WEBSTER Earth Science Information Partner (ESIP) provides terrestrial ecosystem research data via a web-based search, subset and order system.
Fees: Free
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Metadata_Reference_Information:
Metadata_Date: 20020731
Metadata_Review_Date: 20130809
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: EOS-WEBSTER SUPPORT
Contact_Position: DIF AUTHOR
Contact_Address:
Address_Type: Mailing and Physical Address
Address: Complex Systems Research Center
Address: Institute for the Study of Earth, Oceans, and Space
Address: Morse Hall
Address: University of New Hampshire
City: Durham
State_or_Province: New Hampshire
Postal_Code: 03824
Country: USA
Contact_Voice_Telephone: 1-877-589-4909
Contact_Facsimile_Telephone: 603-862-0188
Contact_Electronic_Mail_Address: support@eos-webster.sr.unh.edu
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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