Main Title |
Trophic Classification of Selected Colorado Lakes. |
Author |
Blackwell, R. J. ;
Boland, D. H. P. ;
|
CORP Author |
Jet Propulsion Lab., Pasadena, CA. |
Year Published |
1979 |
Report Number |
NASA-CR-158500 ;EPA-600/4-79-0057; NAS7-100; |
Stock Number |
N79-22591/8 |
Additional Subjects |
Colorado ;
Eutrophication ;
Lakes ;
Water quality ;
Classifications ;
Data acquisition ;
Landsat 1 ;
Multispectral band scanners ;
Regression analysis ;
Tables(Data) ;
Water pollution ;
Aircraft
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
N79-22591/8 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
210p |
Abstract |
Multispectral scanner data, acquired over several Colorado lakes using LANDSAT-1 and aircraft, were used in conjunction with contact-sensed water quality data to determine the feasibility of assessing lacustrine trophic levels. A trophic state index was developed using contact-sensed data for several trophic indicators. Relationships between the digitally processed multispectral scanner data, several trophic indicators, and the trophic index were examined using a supervised multispectral classification technique and regression techniques. Statistically significant correlations exist between spectral bands, several of the trophic indicators and the trophic state index. Color-coded photomaps were generated which depict the spectral aspects of trophic state. |
Supplementary Notes |
Subm-Sponsored by NASA and EPA. Misc-Original Contains Color Illustrations. |
PUB Date Free Form |
Jan 79 |
Category Codes |
8H; 48G |
NTIS Prices |
PC A10/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
323701151 |
Origin |
NTIS |
Type |
CAT |