Potential Applications of HyspIRI for the Observation of Sea-Margin Processes
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- Potential Applications of HyspIRI for the Observation of Sea-Margin Processes
- Other Titles
- 연안 해양 관측을 위한 HyspIRI 활용 가능성 연구
- Jo, Young-Heon
Klemas, Victor V.
Turpie, Kevin R.
- Environmental Sciences & Ecology; Physical Geography; Geology
- Hyperspectral Infrared Imager; groundwater; shoreline remote sensing; ice
- Issue Date
- 조영헌, et al. 2019. "Potential Applications of HyspIRI for the Observation of Sea-Margin Processes". JOURNAL OF COASTAL RESEARCH, 35(1): 227-239.
- The Hyperspectral Infrared Imager (HyspIRI) mission will observe the effects of future environmental changes upon the
world’s ecosystems. Among other applications, this paper reviews three different sea-margin processes that can be
monitored by the HyspIRI spectrometer, i.e. groundwater and surface-water discharge, meltwater-pond formation, and
shoreline delineation. Groundwater and surface-water discharge to coastal regions affects local ecological conditions
through changes in the local temperature, salinity, and nutrient load. Water-quality changes and temperature
variability resulting from such discharge can be estimated from observation in the visible-to-shortwave-infrared
(VSWIR) and the mid- and thermal-infrared (TIR) regions, respectively. The processes of meltwater forming ponds and
entering the sea have unique ecological characteristics and are of additional interest because they are also highly subject
to climate change. HyspIRI can use TIR to observe the spatial distribution of meltwater, whereas its VSWIR
spectrometer can be used to quantify the changes of phytoplankton pigments (e.g., chlorophyll a). Quantifying seamargin
changes requires accurate delineation of margin positions wherein tidal influence is minimal. Since the HyspIRI
VSWIR data cover a wide spectral range and offer high spatial resolution, they are particularly suitable for shoreline
delineation/change detection, as well as flood mapping. The signal-to-noise ratio of HyspIRI is expected to be comparable
to that of the Hyperspectral Imager for the Coastal Ocean and much higher than that of Hyperion and Landsat
Enhanced Thermal Mapper Plus, making it suitable for studying optically complex coastal aquatic environments.
Herein, using examples from existing satellite sensors, HyspIRI’s potential to study these complex sea-margin processes
is presented and discussed.
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