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.
This map identifies reefs that falls within each of the 3 Impact Zones
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).
This map illustrates the impact of the Hunga Tonga-hunga Ha'apai volcanic eruption and the subsequent tsunami in 'Ohonoua town ('Eua Prope district, Tonga) and damage assessment as detected from Pleiades images acquired on 20 January 2022 at 11:20 local time and 21 January 2022 at 11:13 local time.
The map was produced by JRC.. Joint Research Centre of the EU. It provided a situation overview as at 18 & 19 Jan, 2022 Sources provided by UN OCHA. Sattelite mapping activation sources: Corpernicus, UNOSAT- UNITR, International Charter Activation 744.
This document also provide some infomation on the types of assistance that have been provided to the people as well as findings from the assessment.
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
Concerns are raised over potential negative impacts of desalination activity on the environment.
Resource and Guidance Manual for Environmental Impact Assessments
Suggested Citation :
UNEP (2008) Desalination Resource and Guidance Manual for Environmental Impact Assessments. United Nations Environment Programme, Regional Office for West Asia, Manama, and World Health Organization, Regional Office for the Eastern Mediterranean, Cairo
This review was in preparation for Tonga's 4th national report to the CBD (Convention on Biological Diversity)
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).
The Integrated Water and Coastal Management Plan for Vava'u acrhipelago in the Kingdom of Tonga has involved consultations with multi-level and multi-discipline stakeholder including local, provincial and national institutions, civil societies, private institutions and communities.
The Integrated Water and Coastal Management (IWCM) project was initiated in 2013 as a continuation of the very successful Integrated Water Resource Management Project in Vava'u from 2010-2012.
The deliverable focuses on a categorized listing of key issues and available information plus a concise description of the major characteristics of the Tongatapu coast (see Appendix B). The evidence to support the recommendations presented in this report has been gathered from a literature review, interviews with key stakeholders of Tongan government agencies and consideration of existing institutional practices of coastal management planning from the international arena (see Deliverable 2).
Rising oceans, changing lives: Final report is the overview report in a series of technical reports that have been
written for the project on Lifuka Island. Accordingly the section titles in the final report correspond with the
names of the respective technical reports.
This was an integrated effort by all concerned with the coastline in Tonga.
Integrated Coastal management applied conscious management process that acknowledge the interrelationships among most coastal and ocean uses and the environment that potentially affected.