Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data
Acid sulphate soils (ASS) are widely spread around the world and are potentially harmful to the environment due to their strong acidity producing ability and their capability to release trace metals. Secondary iron-bearing minerals produced by ASS, have diagnostic spectral features in the visible-ne...
| Main Authors: | , , |
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| Format: | Journal Article |
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Canadian Aeronautics and Space Institute
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/33846 |
| _version_ | 1848754060274958336 |
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| author | Shi, Xianzhong Aspandiar, Mehrooz Oldmeadow, David |
| author_facet | Shi, Xianzhong Aspandiar, Mehrooz Oldmeadow, David |
| author_sort | Shi, Xianzhong |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | Acid sulphate soils (ASS) are widely spread around the world and are potentially harmful to the environment due to their strong acidity producing ability and their capability to release trace metals. Secondary iron-bearing minerals produced by ASS, have diagnostic spectral features in the visible-near infrared to short-wave infrared spectral range and can be good indicators to the severity of the effects of ASS. Therefore, it is possible to detect ASS using hyperspectral sensing by mapping these indicative iron-bearing minerals. Iron oxides, hydroxides, hydroxysulphates, as well as noniron-bearing minerals, were mapped using airborne Hyperspectral Mapper data. Subsequently, a soil pH map of the surface was deduced according to the relationship between the indicative mineral species and measured pH values. Furthermore, this study investigated the presence of ASS in the subsurface by the proximal hyperspectral sensing HyLogger system, together with soil coring and soil property measurements. This allowed the acquisition of mineralogy, pH, and other soil properties at different subsurface depths. Thus, comprehensive understanding and estimation of ASS, both on the surface and in the subsurface, were attained. |
| first_indexed | 2025-11-14T08:34:24Z |
| format | Journal Article |
| id | curtin-20.500.11937-33846 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:34:24Z |
| publishDate | 2013 |
| publisher | Canadian Aeronautics and Space Institute |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-338462017-09-13T15:09:37Z Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data Shi, Xianzhong Aspandiar, Mehrooz Oldmeadow, David Acid sulphate soils (ASS) are widely spread around the world and are potentially harmful to the environment due to their strong acidity producing ability and their capability to release trace metals. Secondary iron-bearing minerals produced by ASS, have diagnostic spectral features in the visible-near infrared to short-wave infrared spectral range and can be good indicators to the severity of the effects of ASS. Therefore, it is possible to detect ASS using hyperspectral sensing by mapping these indicative iron-bearing minerals. Iron oxides, hydroxides, hydroxysulphates, as well as noniron-bearing minerals, were mapped using airborne Hyperspectral Mapper data. Subsequently, a soil pH map of the surface was deduced according to the relationship between the indicative mineral species and measured pH values. Furthermore, this study investigated the presence of ASS in the subsurface by the proximal hyperspectral sensing HyLogger system, together with soil coring and soil property measurements. This allowed the acquisition of mineralogy, pH, and other soil properties at different subsurface depths. Thus, comprehensive understanding and estimation of ASS, both on the surface and in the subsurface, were attained. 2013 Journal Article http://hdl.handle.net/20.500.11937/33846 10.5589/m13-054 Canadian Aeronautics and Space Institute restricted |
| spellingShingle | Shi, Xianzhong Aspandiar, Mehrooz Oldmeadow, David Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title | Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title_full | Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title_fullStr | Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title_full_unstemmed | Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title_short | Assessment of Acid Sulphate Soil both on surface and in subsurface using hyperspectral data |
| title_sort | assessment of acid sulphate soil both on surface and in subsurface using hyperspectral data |
| url | http://hdl.handle.net/20.500.11937/33846 |