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Investigation:

CD-15 (Cohen / Costa)

LBA Dataset ID:

CD15_BigFoot_LAI_and_Landcover

Originator(s):

1. Cohen, Warren B.
      2. Maiersperger, Thomas Krueger

Point(s) of Contact:

Cohen, Warren B. (Warren.Cohen@oregonstate.edu)

Dataset Abstract:

These land cover and leaf area index (LAI) data were produced from ETM+ imagery to characterize the BigFoot / EOS Land Validation site in Brazil, the km 67 Primary Forest Tower Site in the Tapajos National Forest near Santarem. Each surface (land cover and LAI) has a grain of 25 meters and covers a 7 x 7 km extent. The land cover scheme is consistent with the categories defined by the MOD12 IGBP strategy. Each data set consists of:
- the landcover or LAI surface image in standard geotiff format, - an accompanying text file which provides metadata specific to the image (such as projection, data type, class names, etc), - and associated auxiliary and world files.

Beginning Date:

None indicated.

Ending Date:

None indicated.

Metadata Last Updated on:

2012-07-03

Data Status:

Archived at LBA-DIS Only

Access Constraints:

Public

Data Center URL:

http://daac.ornl.gov

Distribution Contact(s):

ORNL DAAC User Services (ornldaac@ornl.gov)

Access Instructions:

Public

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Datafile(s):

Access data via LBA DIS ftp site:  ftp://lba.cptec.inpe.br/lba_archives/CD/CD-15/CD15_BigFoot_LAI_and_Landcover/data/
Access data via ORNL DAAC ftp site:  Search at ORNL DAAC

Documentation/Other Supporting Documents:

Maps of the BigFoot Tapajos National Forest, Km 67 Study Site:  http://www.fsl.orst.edu/larse/bigfoot/data_maps_tapa2002.html
Readme file for LAI data:  Search at ORNL DAAC
Readme file for Land Cover data:  Search at ORNL DAAC
Data Set User's Guide:  Search at ORNL DAAC

Citation Information - Other Details:

Cohen, W.B., D.P. Turner, T.K. Maiersperger. 2011. LBA-ECO CD-15 Land Cover and Leaf Area Index, Tapajos National Forest (BigFoot). Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.

Keywords - Theme:

Parameter Topic Term Source Sensor
LAND COVER LAND SURFACE LAND USE/LAND COVER FIELD INVESTIGATION MODIS (MODERATE-RESOLUTION IMAGING SPECTRORADIOMETER)
LEAF AREA INDEX BIOSPHERE VEGETATION LANDSAT-7 (LAND REMOTE-SENSING SATELLITE-7) ETM+ (ENHANCED THEMATIC MAPPER PLUS)

Uncontrolled Theme Keyword(s):  BIGFOOT, LAND VALIDATION, MODIS

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
Para Western (Santarem) km 67 Primary Forest Tower Site -2.85700 -2.85700 -54.95900 -54.95900

Related Publication(s):

Cohen, W.B., T.K. Maiersperger, D.P. Turner, W.D. Ritts, D. Pflugmacher, R.E. Kennedy, A. Kirschbaum, S.W. Running, M. Costa, and S.T. Gower. 2006. MODIS land cover and LAI collection 4 product quality across nine sites in the western hemisphere. Ieee Transactions on Geoscience and Remote Sensing 44(7):1843-1857.

Turner, D.P., W.D. Ritts, W.B. Cohen, S.T. Gower, S.W. Running, M.S. Zhao, M.H. Costa, A.A. Kirschbaum, J.M. Ham, S.R. Saleska, and D.E. Ahl. 2006. Evaluation of MODIS NPP and GPP products across multiple biomes. Remote Sensing of Environment 102(3-4):282-292.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

The data sets consist of:

- the landcover or LAI surface image in standard geotiff format,

- an accompanying text file that provides metadata specific to the image

(such as projection, data type, class names, etc), and

- associated auxiliary and world files.




Land Cover File Names:

bf_tapa_2002_landcover_igbp.tfw

bf_tapa_2002_landcover_igbp.tif

bf_tapa_2002_landcover_igbp.txt




Leaf Area Index File Names:

bf_tapa_2002_lai_x10_them_with_defaults.tfw

bf_tapa_2002_lai_x10_them_with_defaults.tif

bf_tapa_2002_lai_x10_them_with_defaults.txt



Note: the LAI files were renamed to be consistent with the land cover file names.

Original file names were as follows:

bf_tapa_lai_2002_x10_them_with_defaults.tfw

bf_tapa_lai_2002_x10_them_with_defaults.tif

bf_tapa_lai_2002_x10_them_with_defaults.txt




A. General Information for the Land Cover data:

1. Theme: Land Cover in IGBP Units

Theme Date: Year 2002

Project: BigFoot

Site: TAPA (Santarem, Brazil)

Biome: Broadleaf Forest

Contact: warren.cohen@oregonstate.eduu


2. Layer Information

Rows: 281

Cols: 281

Data Type: unsigned 8-bit thematic

Format: Geotiff


3. Map Information

ULX: 724450

ULY: 9686110

Pixel Size: 25

Units: meters

Projection: UTM

Spheroid: WGS84

Datum: WGS84

Zone: 21 South


4. Attribute Information

Value Class Name

2 Evergreen Broadleaf Forest

10 Grassland

12 Cropland

13 Urban/Built






B. General Information for the LAI data:

1. Theme: Leaf Area Index (LAI)

Theme Date: Year 2002

Project: BigFoot

Site: TAPA (Santarem, Brazil)

Biome: Broadleaf Forest

Contact: warren.cohen@oregonstate.edu


2. Layer Information

Rows: 281

Cols: 281

Data Type: unsigned 8-bit thematic

Format: Geotiff


3. Map Information

ULX: 724450

ULY: 9686110

Pixel Size: 25

Units: meters

Projection: UTM

Spheroid: WGS84

Datum: WGS84

Zone: 21 South


4. Attribute Information

Pixel values are LAI estimates multiplied by 10 (e.g. a value of 55 = 5.5 LAI)


5. Additional Information

Some land classes were not modeled. For these pixels, default LAI values were inserted based on literature estimates or other information.




BigFoot site names and locations: (This data set includes only TAPA: Tapajos National Forest in Brazil</b>

AGRO (Bondville site, Tolono, Illinois, USA);

CHEQ (Tall Towers site, Park Falls, Wisconsin, USA);

HARV (Harvard Forest LTER, Petersham, Massachusetts, USA);

KONZ (Konza Prairie LTER, Manhattan, Kansas, USA);

METL (OTTER Site, Sisters, Oregon, USA);

NOBS (BOREAS NSA site, Thompson, Manitoba, Canada);

SEVI (Sevilleta LTER, Belen, New Mexico, USA);

TAPA [Tapajos (near Santarem), Brazil]; and

TUND (Barrow, Alaska, USA)

Data Application and Derivation:

Not available.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

Not available.

Process Description:

Data Acquisition Materials and Methods:

For an in depth discussion of methods used to produce the BigFoot surfaces, please see:

Cohen, W.B., T.K. Maiersperger, Z. Yang, S.T. Gower, D.P. Turner, W.D. Ritts, M. Berterretche, and S.W. Running. 2003. Comparisons of land cover and LAI estimates derived from ETM+ and MODIS for four sites in North America: a quality assessment of 2000/2001 provisional MODIS products. Remote Sensing of Environment. 88:221-362.

References:

Cohen, W.B., T.K. Maiersperger, Z. Yang, S.T. Gower, D.P. Turner, W.D. Ritts, M. Berterretche, and S.W. Running. 2003. Comparisons of land cover and LAI estimates derived from ETM+ and MODIS for four sites in North America: a quality assessment of 2000/2001 provisional MODIS products. Remote Sensing of Environment. 88:221-362.

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