Resource contains raster files for a Digital Elevation Model (DEM) and derived hillshade for Tuvalu.
The ASTER Global Digital Elevation Model (GDEM) Version 3 (ASTGTM) provides a global digital elevation model (DEM) of land areas on Earth at a spatial resolution of 1 arc second (approximately 30 meter horizontal posting at the equator).
This resource contains satellite imagery for Tuvalu. The imagery was collected on July 20, 2020, September 21, 2020, and October 11, 2020.
More specially, this resource contains a raster file of RGB imagery at 10-meter resolution, using Level-2A products when available. Level-2A products include atmospheric correction and represent bottom of atmosphere reflectance values in the images. When Level-2A products were not available, Level-1C (top of atmosphere) products were used.
The folder contains GIS data for Atata Island acquired from UNOSTAT. Shapefiles are derived from Pleiades Sensor with data available on Structures impacted Points) and Analysis Extent (Polygon).
The folder contains GIS data for Fonoifua Island acquired from UNOSTAT. Shapefiles are derived from Pleiades Sensor with data available on Structures impacted (Points) and Analysis Extent (Polygon).
The folder contains GIS data for Mango Island acquired from UNOSTAT. Shapefiles are derived from Kompsat3 Sensor, World View 2 Sensor and Pleiades Sensor with data available on Structures impacted (Points), Analysis Extent (Polygon) and Shoreline (Line).
The folder contains GIS data for Nomuka Island acquired from UNOSTAT. Shapefiles are derived from Pleiades Sensor and World View2 sensor with data available on Structures impacted for 17/01, 18/01 (Points), Analysis Extent for 17/01, 18/01 (Polygon), Flood extent, Lake extent (13/11/21 and 18/01/22), Cloud obstruction and SW Shoreline for 13/11/21, 18/01/22.
Buffer distances of 100, 150 and 250km created from the volcanic eruption boundary to identify the level of impacts from the eruption to the resources within the three impact zones.
Map showing reefs with in the different Impact Zones.
This is the Geojson format of the same data in shapefile.
The folder contains GIS data for Eua Island acquired from UNOSTAT. Shapefiles are derived from Pleiades Sensor and World View 3 sensor with data available on Structures impacted (Points), Analysis Extent (Polygon), Cloud obstruction (Polygon) and Shoreline (Lines).
The folder contains spatial data in Geojson format for Tonga Volcanic Eruption Damage Assessment Analysis - Atata Island, Fonifua Island, Mango Island and Nomuka Island acquired from UNOSTAT. Datasets available are Structures impacted (Points), Analysis Extent (Polygon), Cloud obstruction (Polygon) and Shoreline (Lines) which are derived from the Pleiades , Kompsat 3 and World View 3 Sensors.
Atlas of Living Australia data on invasive alien species found in Tuvalu