Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Pacific Islands CASC > FY 2016 Projects > Collecting Elevation Data to Understand Climate Change Effects in the Marshall Islands ( Show direct descendants )
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ROOT _ScienceBase Catalog __National and Regional Climate Adaptation Science Centers ___Pacific Islands CASC ____FY 2016 Projects _____Collecting Elevation Data to Understand Climate Change Effects in the Marshall Islands Filters
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Located in the northern tropical Pacific Ocean, Majuro is the capital of the Republic of the Marshall Islands. Majuro Atoll consists of a large, narrow landmass and a set of smaller perimeter islands surrounding a lagoon that is over 100 square miles in size. The waters surrounding the Majuro Atoll land areas are relatively shallow with poorly mapped bathymetry. However, the Pacific Ocean on the exterior of the coral atoll and the lagoon within its interior consist of deep bathymetry with steep slopes. The highest elevation of the Majuro Atoll is estimated at only 3-meters above sea level, which is the island community of Laura located on the western part of the atoll. At the eastern edge of the atoll lies the capital...
Categories: Data;
Tags: 3D Elevation Program,
3DEP,
American Society of Photogrammetry and Remote Sensing,
Base Maps,
Bathymetric,
User’s guide for downloading and using the One Meter Topobathymetric Digital Elevation Model (DEM) for Majuro Atoll, Republic of the Marshall Islands.
Abstract: Satellite-derived near-shore bathymetry (SDB) is becoming an increasingly important method for assessing vulnerability to climate change and natural hazards in low-lying atolls of the northern tropical Pacific Ocean. Satellite imagery has become a cost-effective means for mapping near-shore bathymetry because ships cannot collect soundings safely while operating close to the shore. Also, green laser light detection and ranging (lidar) acquisitions are expensive in remote locations. Previous research has demonstrated that spectral band ratio-based techniques, commonly called the natural logarithm approach, may lead to more precise measurements and modeling of bathymetry because of the phenomenon that different...
Categories: Publication;
Types: Citation;
Tags: Pacific Islands CASC,
Sea-Level Rise and Coasts,
Water, Coasts and Ice
This Project Snapshot provides a brief overview summary of the project "Collecting Elevation Data to Understand Climate Change Effects in the Marshall Islands".
Majuro Atoll in the central Pacific has high coastal vulnerability due to low-lying islands, rising sea level, high wave events, eroding shorelines, a dense population center, and limited freshwater resources. Land elevation is the primary geophysical variable that determines exposure to inundation in coastal settings. Accordingly, coastal elevation data (with accuracy information) are critical for assessments of inundation exposure. Previous research has demonstrated the importance of using high-accuracy elevation data and rigorously accounting for uncertainty in inundation assessments. A quantitative analysis of inundation exposure was conducted for Majuro Atoll, including accounting for the cumulative vertical...
Categories: Publication;
Types: Citation;
Tags: Pacific Islands CASC,
Sea-Level Rise and Coasts,
Water, Coasts and Ice
Final Report: Collecting Elevation Data to Understand Climate Change Effects in the Marshall Islands
Categories: Publication;
Types: Citation;
Tags: Pacific Islands CASC,
Sea-Level Rise and Coasts,
Water, Coasts and Ice
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