| Main Title |
Use of Water Raman Emission to Correct Airborne Laser Fluorosensor Data for Effects of Water Optical Attenuation. |
| Author |
Bristow, Michael ;
Nielsen, David ;
Bundy, Donald ;
Furtek, Robert ;
|
| CORP Author |
Environmental Monitoring Systems Lab., Las Vegas, NV. |
| Year Published |
1981 |
| Report Number |
EPA-600/J-81-184; |
| Stock Number |
PB82-153784 |
| Additional Subjects |
Remote sensing ;
Water analysis ;
Chlorophylls ;
Aerial surveys ;
Design ;
Performance evaluation ;
Fluorescence ;
Water pollution ;
Concentration(Composition) ;
Surface waters ;
Reprints ;
Laser spectroscopy ;
Water pollution detection ;
Raman spectroscopy
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB82-153784 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
20p |
| Abstract |
Airborne laser fluorosensor measurements of fluorophore concentrations in surface waters are highly sensitive to interference from changes in optical attenuation. This interference can be eliminated by normalizing the fluorescence signal with the concurrent water Raman signal. In our application to remotely monitor chlorophyll a concentrations in fresh waters, the Raman-corrected chlorophyll a fluorescence measurements were found to be highly correlated with chlorophyll a ground truth data. Also, the reciprocal of the water Raman signal was seen to vary directly as the beam attenuation coefficient. It is suggested that this latter relationship be exploited as a means for remotely sensing changes in the optical attenuation of surface waters. |
