Revision date: September 5, 2013
This data set contains a time series of early Landsat-4 MSS satellite imagery as well as Landsat-5 TM and Landsat-7 ETM+ satellite imagery of the northern Ecuadorian Amazon. Some of the TM and ETM images have been georectified to UTM Zone 18 South, WGS84 Datum. Not all of the images have been georectified.
There are 16 GeoTIFF (.tiff) images provided in eight compressed (*.zip) files with this data set. When expanded, the .zip files provide the image files and corresponding header (.hdr) files with band and projection information.
Cite this data set as follows:
Walsh, S.J., R.E. Bilsborrow, and B.G. Frizzelle. 2013. LBA-ECO LC-01 Landsat MSS, TM, ETM+ Imagery, Northern Ecuadorian Amazon: 1973-2002. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, USA. http://dx.doi.org/10.3334/ORNLDAAC/1187
The LBA Data and Publication Policy [http://daac.ornl.gov/LBA/lba_data_policy.html] is in effect for a period of five (5) years from the date of archiving and should be followed by data users who have obtained LBA data sets from the ORNL DAAC. Users who download LBA data in the five years after data have been archived must contact the investigators who collected the data, per provisions 6 and 7 in the Policy.
This data set was archived in September of 2013. Users who download the data between September 2013 and August 2018 must comply with the LBA Data and Publication Policy.
Data users should use the investigator contact information in this document to communicate with the data provider.
Data users should use the data set citation and other applicable references provided in this document to acknowledge use of the data.
Project: LBA (Large-Scale Biosphere-Atmosphere Experiment in the Amazon)
Activity: LBA-ECO
LBA Science Component: Human Dimensions
Team ID: LC-01 (Bilsborrow / Walsh / Garcia)
The investigators were Bilsborrow, Richard E.; Walsh, Stephen J. and McGregor, Stephen J. . You may contact Walsh, Stephen J. (swalsh@email.unc.edu) ; Bilsborrow, Richard E. (richard_bilsborrow@unc.edu) and Frizzelle, Brian G. (bgf@email.unc.edu).
LBA Data Set Inventory ID: LC01_Landsat
This data set contains a time series of early Landsat-4 MSS satellite imagery as well as Landsat-5 TM and Landsat-7 ETM satellite imagery of the northern Ecuadorian Amazon. Some of the TM and ETM images have been georectified to UTM Zone 18 South, WGS84 Datum. Not all of the images have been georectified.
Related Data Sets:
There are 16 GeoTIFF (.tiff) images and corresponding header files (.hdr) provided in eight compressed (*.zip) files with this data set. The header files provide band and projection information.
The zip file names and GeoTIFF file names reflect the Landsat path/row_ Landsat-4 MSS satellite imagery or Landsat-5 TM _date.
File names:
| Zip File Names | Image File Names (.tif) | Sensor | Raw or Rectified |
|---|---|---|---|
| p9r60_mss_07feb73.zip | p9/r60_mss_07feb73.tif | MSS | raw |
| p9r60_tm_07aug89.zip | p9/r60_tm_07aug89.tif | TM | rectified |
| p9r60_tm_09nov00.zip | p9r60_tm_09nov00_pan.tif p9r60_tm_09nov00_tir.tif p9r60_tm_09nov00_vir.tif | ETM+ | raw |
| p9r60_tm_12sep02.zip | p9r60_tm_12sep02_pan.tif p9r60_tm_12sep02_tir.tif p9r60_tm_12sep02_vir.tif | ETM+ | raw |
| p9r60_tm_15nov99.zip | p9r60_tm_15nov99.tif | TM | rectified |
| p9r60_tm_19oct95.zip | p9r60_tm_19oct95.tif | TM | rectified |
| p9r60_tm_24aug01.zip | p9r60_tm_24aug01_pan.tif p9r60_tm_24aug01_tir.tif p9r60_tm_24aug01_vir.tif | ETM+ | raw |
| p9r60_tm_9sep01.zip |
p9r60_tm_9sep01_pan.tif p9r60_tm_9sep01_vir.tif p9r60_tm_9sep01_tir.tif | ETM+ | raw |
Files with _pan before the file extension represent Landsat 7 panochromatic band 8, _tir represents Landsat 7 thermal infrared bands 6.1 and 6.2, and _vir represents Landsat 7 visible and near infrared bands 1-5 and 7.
MSS Imagery
Spatial coverage: Path/Row (P/R) -scenes dates (YYYYMMDD) for images.
P9R60 - 19730207 (Full image has not been rectified. The East ISA subset has been rectified.)
Spatial resolution:
Bands 1-4: 79 meters
Band 5: 240 meters
Projection (for imagery that has been georectified): Universal Transverse Mercator, Zone 18S
TM/ETM Imagery
Spatial coverage: Path/Row (p/r) -scenes and dates (YYYYMMDD) for the rectified and raw images.
RECTIFIED: p9r60 - 19890807, 19991115, 20020912
RAW: p9r60 - 20001109, 20010824, 20010909
Spatial resolution:
Bands 1-5 & 7 : 30 meters
Band 6: 120 meters
Projection (for imagery that has been georectified): Universal Transverse Mercator, Zone 18S
Site boundaries: (All latitude and longitude given in decimal degrees)
| Site (Region) | Westernmost Longitude | Easternmost Longitude | Northernmost Latitude | Southernmost Latitude | Geodetic Datum |
|---|---|---|---|---|---|
| Northern Ecuadorian Amazon (Ecuador) | -78.28307 | -74.40062 | 0.94955 | -2.39793 | World Geodetic System, 1984 (WGS-84) |
Time period:
Platform/Sensor/Parameters measured include:
Typical application of the data: These images may be used cartographically, as base data upon which other spatial data layers are displayed. Additionally, the data may be used to derive LULC classifications that may be used to calculate deforestation rates or pattern metrics, as well as to produce change detections.
Derivation techniques: NA; these datasets are the original imagery, from which classifications were derived.
Horizontal Accuracy: MSS Images that have been geo-rectified all have a horizontal accuracy of plus or minus 40 meters. TM images that have been geo-rectified all have a horizontal accuracy of plus or minus 15 meters. Those images that have not been rectified have no quantifiable horizontal accuracy.
Site description
The Northeastern Ecuadorian Amazon is significant from social, biophysical, and geographical bases, with complex terrain and landuse/landchange variability. The western Amazon region, bordering the Andes and lying at the headwaters of the Amazon River basin, possesses several major centers of endemism, including the Napo. Settlers in the Napo and Sucumbios provinces, the two dominant Cantons or States, settled on 50 ha plots, clearing primary forest to grow subsistence crops, coffee, and for pasturage. The annual precipitation is high (2,800 mm/year), so there is no distinct dry season. Despite the region's global biodiversity and carbon sequestration significance, agricultural settlement and consequent deforestation threaten the region (Messina and Walsh, 2001).
Data Acquisition
MSS Data acquisition methods: All scenes were acquired from NASA's Earth Observing System (EOS).
TM Data acquisition methods: All scenes were acquired from EOS, with the exception of two scenes acquired from CLIRSEN (Centro de Levantamientos Integrados de Recursos Naturales por Sensores Remotos) in Ecuador.
Messina, J.P. and S.J. Walsh. 2001. 2.5D Morphogenesis: Modeling Landuse and Landcover Dynamics in the Ecuadorian Amazon. Plant Ecology, 156 (1): 75-88.
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