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.
A presentation on the challenges and opportunities of groundwater governance in Tonga by the Ministry of Lands and Natural Resources at the Groundwater Governance: A Global Framework for Action Regional Consultation for Asia and the Pacific Region that was held in China.
This report is seen as a vehicle for catalyzing common knowledge and understanding among government, donors, NGOs, and communities on rainwater harvesting in the outer island regions of Tonga.
This report from 1992 (one of a series of reports from the Tonga Water Supply Master Plan Study) presents the findings of a recent water resources study of the islands in the Kingdom of Tonga. It summarises previous work, documents recent and current investigations and recommends further investigations to gain a better understanding of the water resources. It also outlines details of a proposed national monitoring and protection programme and makes recommendations about legislation for water resource management and protection.
This report is one in a six series produced for the Tonga Water Safety Plan programme
This report provides design details and costs for the proposed long-term improvements to the water supply
system at Hihifo on the island of Tongatapu, Kingdom of Tonga. This report was part of the demonstration project under the Pacific Adaptation to Climate Change (PACC) programme
The Tonga State of the Environment 2018 report has been developed to answer three key questions related
to the environment of Tonga, and is based on seven thematic areas:
• What is the current condition of the Tongan environment?
• What are the risks the Tongan environment faces and what measures have been put forward to minimise them? This could provide lessons for Tonga.
• Where is the environment of Tonga headed based on the assessed thematic areas?
This dataset holds all media resources for the State of Environment and Conservation in the Pacific Islands: 2020 Regional Report
This publication ‘Strategic Environmental Assessment – Guidelines for Pacific Island Countries and
Territories’ has been prepared to provide guidance on the application of SEA as a tool to support
environmental planning, policy and informed decision making. It provides background on the use and
benefits of SEA as well as providing tips and guiding steps on the process, including case studies, toolkits
and checklists for conducting an SEA in the Appendices.
These guidelines are intended to assist the national and local authorities such as Environment