Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies.
Much of the traditionally used remotely sensed data is surface-oriented, which places some limits on its utility in wetland soil studies. In wetland environments the sediment surface is often obscured by vegetation and/or by water making the soil difficult to view. This study examines the possible u...
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ftlouisianastuir:oai:repository.lsu.edu:gradschool_disstheses-6835 2024-09-15T18:38:05+00:00 Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. Pelletier travis, Ramona Eva 1994-01-01T08:00:00Z application/pdf https://repository.lsu.edu/gradschool_disstheses/5836 https://doi.org/10.31390/gradschool_disstheses.5836 https://repository.lsu.edu/context/gradschool_disstheses/article/6835/viewcontent/9508609.pdf English eng LSU Scholarly Repository https://repository.lsu.edu/gradschool_disstheses/5836 doi:10.31390/gradschool_disstheses.5836 https://repository.lsu.edu/context/gradschool_disstheses/article/6835/viewcontent/9508609.pdf LSU Historical Dissertations and Theses Geophysics Biology ecology Biogeochemistry Remote sensing text 1994 ftlouisianastuir https://doi.org/10.31390/gradschool_disstheses.5836 2024-08-08T04:27:17Z Much of the traditionally used remotely sensed data is surface-oriented, which places some limits on its utility in wetland soil studies. In wetland environments the sediment surface is often obscured by vegetation and/or by water making the soil difficult to view. This study examines the possible utility of remotely sensed data from selected regions of the EM spectrum for wetland soil and gas flux studies. The visible, near-infrared, mid-infrared, thermal, and microwave regions (all mostly surface-oriented); and the ground penetrating radar (VLF) and inductive EM (ULF) regions (mostly subsurface-oriented) were investigated and example wetland soil applications demonstrated. Study sites ranged from a subarctic peatland to temperate coastal wetlands to the subtropical Florida Everglades. All the spectral regions studied helped characterize the water component. The surface-oriented regions aided in determining water inundation extent, and the inductive EM region determined water depth and conductivity (useful in salinity calculations). The reflective and thermal data provided good information for generalized vegetation maps, while the microwave region helped characterize canopy structure, both useful in gas flux extrapolation. The ground penetrating radar characterized peat depth and internal peat stratification in a resistive environment over a conductive clay. This investigation identified remote sensing utility for paleoecological evaluations and for the potential of mapping peat volumes when merged with landcover classification. The airborne inductive EM investigation calculated sediment conductivity, which could be used to differentiate organic from mineral sediments and fine-textured from coarse-textured sediments. Anomalies in sediment porosity, implicative of gas evolution, were also noted. Regional scale contour maps of water depth, water conductivity and sediment conductivity were generated from the EM data transects. While wetland soils cannot be characterized directly by the reflective, thermal and ... Text Subarctic LSU Digital Commons (Louisiana State University) |
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English |
topic |
Geophysics Biology ecology Biogeochemistry Remote sensing |
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Geophysics Biology ecology Biogeochemistry Remote sensing Pelletier travis, Ramona Eva Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
topic_facet |
Geophysics Biology ecology Biogeochemistry Remote sensing |
description |
Much of the traditionally used remotely sensed data is surface-oriented, which places some limits on its utility in wetland soil studies. In wetland environments the sediment surface is often obscured by vegetation and/or by water making the soil difficult to view. This study examines the possible utility of remotely sensed data from selected regions of the EM spectrum for wetland soil and gas flux studies. The visible, near-infrared, mid-infrared, thermal, and microwave regions (all mostly surface-oriented); and the ground penetrating radar (VLF) and inductive EM (ULF) regions (mostly subsurface-oriented) were investigated and example wetland soil applications demonstrated. Study sites ranged from a subarctic peatland to temperate coastal wetlands to the subtropical Florida Everglades. All the spectral regions studied helped characterize the water component. The surface-oriented regions aided in determining water inundation extent, and the inductive EM region determined water depth and conductivity (useful in salinity calculations). The reflective and thermal data provided good information for generalized vegetation maps, while the microwave region helped characterize canopy structure, both useful in gas flux extrapolation. The ground penetrating radar characterized peat depth and internal peat stratification in a resistive environment over a conductive clay. This investigation identified remote sensing utility for paleoecological evaluations and for the potential of mapping peat volumes when merged with landcover classification. The airborne inductive EM investigation calculated sediment conductivity, which could be used to differentiate organic from mineral sediments and fine-textured from coarse-textured sediments. Anomalies in sediment porosity, implicative of gas evolution, were also noted. Regional scale contour maps of water depth, water conductivity and sediment conductivity were generated from the EM data transects. While wetland soils cannot be characterized directly by the reflective, thermal and ... |
format |
Text |
author |
Pelletier travis, Ramona Eva |
author_facet |
Pelletier travis, Ramona Eva |
author_sort |
Pelletier travis, Ramona Eva |
title |
Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
title_short |
Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
title_full |
Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
title_fullStr |
Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
title_full_unstemmed |
Utility of Remote Sensing Technology in Wetland Soil and Gas Flux Studies. |
title_sort |
utility of remote sensing technology in wetland soil and gas flux studies. |
publisher |
LSU Scholarly Repository |
publishDate |
1994 |
url |
https://repository.lsu.edu/gradschool_disstheses/5836 https://doi.org/10.31390/gradschool_disstheses.5836 https://repository.lsu.edu/context/gradschool_disstheses/article/6835/viewcontent/9508609.pdf |
genre |
Subarctic |
genre_facet |
Subarctic |
op_source |
LSU Historical Dissertations and Theses |
op_relation |
https://repository.lsu.edu/gradschool_disstheses/5836 doi:10.31390/gradschool_disstheses.5836 https://repository.lsu.edu/context/gradschool_disstheses/article/6835/viewcontent/9508609.pdf |
op_doi |
https://doi.org/10.31390/gradschool_disstheses.5836 |
_version_ |
1810482409804660736 |