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).
The development of the ASTER GDEM data products is a collaborative effort between National Aeronautics and Space Administration (NASA) and Japan’s Ministry of Economy, Trade, and Industry (METI). The ASTER GDEM data products are created by the Sensor Information Laboratory Corporation (SILC) in Tokyo.
Resource contains raster files for a Digital Elevation Model (DEM) and derived hillshade for Tonga.
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).
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.
The maps highlights areas with significant shift in the shoreline by overlaying shoreline data from Nov 2021 and January 2022
The maps highlights areas with significant shift in the shoreline by overlaying shoreline data from Nov 2021 and January 2022
The Institute for Marine Remote Sensing (IMaRS) at the University of South Florida (USF) was funded by the Oceanography Program of the National Aeronautics and Space Administration (NASA) to provide an exhaustive worldwide inventory of coral reefs using high-resolution satellite imagery. By using a consistent dataset of high-resolution (30 meter) multispectral Landsat 7 images acquired between 1999 and 2002, USF characterized, mapped and estimated the extent of shallow coral reef ecosystems in the main coral reef provinces (Caribbean-Atlantic, Pacific, Indo-Pacific, Red Sea).
PNG's forest cover loss 2000-2017 downloaded from [www.globalforestwatch.org](https://www.globalforestwatch.org/)
From 2001 to 2017, Papua New Guinea lost 1.28Mha of tree cover, equivalent to a 3.0% decrease since 2000, and 158Mt of CO₂ of emissions.
New Zealand's geographic isolation and long period without human habitation allowed a unique natural environment to flourish. Our
environment is known for the richness of its biodiversity, with more than 80,000 native animal, plant, and fungus species. As a result of New Zealand's isolation, much of our flora and fauna are not found anywhere else on earth.
Also available online
Call Number: 333.7 ENV [EL]
ISBN/ISSN: 978-0-478-30194-6
Physical Description: 74 p. ; 29 cm
In June 2007 a group of engineers, public health practitioners, local and international NGO staff, academics and government
representatives gathered to discuss water and sanitation in South East Asia and the Pacific at the Let's Come Clean Conference in Melbourne, Australia. At the conference, consensus emerged on the need for greater regional exchange of experience in sanitation. It was agreed that more could be done to document and disseminate practical lessons learned from water, sanitation and hygiene initiatives throughout the region.
Available online
Forests and other wooded land together cover about
one-third of the Asia and the Pacific region.
Excluding the Russian Federation, forest area in 2005
was estimated at 734 million hectares, accounting for
about 19 percent of global forest area. The region as a
whole experienced a net increase in forest area of about
633 000 ha annually during 2000-2005. This
is an important breakthrough, since the region had
experienced a net loss of forest cover during the 1990s. The improvement was largely the result of an increase of more