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Optical Thickness Data: Ground (OTTER)

Data Set Overview

Data setOptical Thickness Data: Ground (OTTER)
Release date1994-07-24
ProjectOregon Transect Ecosystem Research
Time Period1990-02-22 to 1991-06-10


Field sunphotometer data collected on 8/13-15/90 used to provide quantitative atmospheric correction to remotely sensed data of forest reflectance and radiance


Data set reference document


Spanner, M.A. 1994. Optical Thickness Data: Ground (OTTER). ORNL DAAC, Oak Ridge, Tennessee, USA.
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Oregon Transect Ecosystem Research : The Oregon Transect Ecosystem Research (OTTER) project was a collaborative effort between NASA and several universities to study the ecology of western coniferous forests using remote sensing technology supported by ground observations. The primary objective of the OTTER project was to estimate major fluxes of carbon, nitrogen, and water in coniferous forests using an ecosystem process model.

Project data set list for Oregon Transect Ecosystem Research .

Oregon Transect Ecosystem Research has 6 available companion files.
  • aug90cam.txt
  • oct90cam.txt
  • siteloc.txt
  • jun90cam.txt
  • win90cam.txt
  • may91cam.txt

Companion Files

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  • Field_Sun_Photometer_Data.pdf
  • fldsunp.txt

Data Files

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Data File (Granule)File SizeDatesLatitudeLongitude
field_sunp.aug90 22.8 KB 1990-08-13 - 1990-08-15 45.07N123.95W
field_sunp.febmar90 8.0 KB 1990-02-22 - 1990-03-21 45.07N123.95W
field_sunp.jun90 50.7 KB 1990-06-18 - 1990-06-26 45.07N123.95W
field_sunp.jun91 4.3 KB 1991-06-09 - 1991-06-10 44.42N121.84W
field_sunp.may91 5.0 KB 1991-05-22 44.60N123.27W
field_sunp.oct90 7.1 KB 1990-10-08 45.07N123.95W

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Files related to this data set have been downloaded on 42 occasions since 2008-11-12, totaling 210 files.