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Record 1 of 3230
The remote sensing of algae
Author and Affiliation:
Thorne, J. F.(Wisconsin State, Dept. of Natural Resources, Madison, Wis., United States)
Abstract: State agencies need rapid, synoptic and inexpensive methods for lake assessment to comply with the 1972 Amendments to the Federal Water Pollution Control Act. Low altitude aerial photography may be useful in providing information on algal type and quantity. Photography must be calibrated properly to remove sources of error including airlight, surface reflectance and scene-to-scene illumination differences. A 550-nm narrow wavelength band black and white photographic exposure provided a better correlation to algal biomass than either red or infrared photographic exposure. Of all the biomass parameters tested, depth-integrated chlorophyll a concentration correlated best to remote sensing data. Laboratory-measured reflectance of selected algae indicate that different taxonomic classes of algae may be discriminated on the basis of their reflectance spectra.
Publication Date: Jan 01, 1977
Document ID:
19780050951
(Acquired Dec 01, 1995)
Accession Number: 78A34860
Subject Category: ENVIRONMENT POLLUTION
Document Type: Conference Proceedings
Publication Information: (SEE A78-34851 14-43)
Publisher Information: United States
Meeting Information: Annual Remote Sensing of Earth Resources Conference; 6th; March 29-31, 1977; Tullahoma, TN
Contract/Grant/Task Num: NGL-50-002-127
Financial Sponsor: NASA; United States
Organization Source: Wisconsin Dept. of Natural Resources; Madison, WI, United States
Description: 16p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ALGAE; LIMNOLOGY; PHOTOMAPPING; POLLUTION MONITORING; WATER QUALITY; AERIAL PHOTOGRAPHY; ALBEDO; CHLOROPHYLLS; SPECTRAL REFLECTANCE; WISCONSIN
Imprint And Other Notes: In: Remote sensing of earth resources. Volume 6 - Annual Remote Sensing of Earth Resources Conference, 6th, Tullahoma, Tenn., March 29-31, 1977, Technical Papers. (A78-34851 14-43) Tullahoma, Tenn., University of Tennessee, 1977, p. 145-160.
Availability Source: Other Sources
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