In January 1993, a SEAFRAME (Sea Level Fine Resolution Acoustic Measuring Equipment) gauge was installed in Nukualofa, Tonga. Readings(height observations) recorded from the gauge, is held in this record and provided in the form of Yearly Reports, Tide Prediction Calendars and Hourly Sea Level and meteorological data (update frequency- real time) from the Nukualofa station. This is downloadable from the Distribution Info Section of this metadata record.The gauge has been returning high resolution, good scientific quality data since its installation.
This report provides a technical description of the Tongan marine survey. Where multibeam data was collected for the two islands of Tongatapu and Niuafoou, this data set includes the Basin A area north of Nukualofa and a single beam survey of Tongatapu's Fangauta lagoon, as this was identified as major interest areas during a stakeholder consultation exercise conducted in late 2002 (SOPAC, 2002).SOPAC has implemented a project Reducing Vulnerability of Pacific ACP states with funding secured from the European Union (EDF8).
- Wind assessment carried out on Tongatapu by the University of the South Pacific.
- Forum for Energy and Development (FED) and the Government of Denmark supported a pre-feasibility study including a wind resource assessment for Tongapatu. Both of reports are attached below.
Concise environmental legislative reviews of Pacific Island countries plus Tokelau. **Please submit new information or corrections as the reviews will be updated annually.**
Different reports on freshwater supply, groundwater pertaining to Lifuka of Ha'apai, Tonga.
Data table on existing Tonga Outer Islands Solar Electrification Installations and Project Sites as of September 2013. Data table extracted from the report "Tonga Outer Islands Solar Electrification in Tonga: A Case Study". The dataset captures:
- Project site
- Year of installation
- Source of funds
- System type (mostly solar home systems - SHS)
- Quantity
- Module (Wp)
- No. of panels &
- Total Wp.
This record captures 2012 - 2014 petroleum product imports for Tonga. Data is sourced from the 2012 - 2014 Tonga International Merchandise Trade Report. Selected petroleum product imports are extracted with the exception of bitumin, peat, gases excluding petroleum gas. types of petroleum fuel (diesel, petrol, jet fuel , avgas), gases, and lubricants. Products captured here are from Section 5 of the HS Code Manual - Mineral Products, Chapter 27, HS Codes : 2701, 2706 - 2713, 3403 (lubricants).
This record captures renewable energy projects in Tonga from 1991 - 2010 for solar and wind projects. Data is sourced from the Tonga Energy Planning Unit and was used for the Tonga INDC compilation. Dataset captures the photovoltaic (PV) utilization in Tonga in terms of PV capacity installed by:
- Energy Planning Unit,
- water pumping
- Private and other intiatives - hotels, business, home systems
Data is attached here as it was provided to SPC in 2015.
Dataset captures the overall petroleum products imported into Tonga from 2007 - 2011. Products captured include all petroleum products i.e. diesel, motor spirit, kerosene, LPG, and Lubricants. Data is captured by date of entry, country of origin, description of the goods, unit, quantity and CIF value. Data is produced by the Tonga Customs Office with sensitive information removed. Data was provided by the Tonga Energy Roadmap Implementation Unit (TERM IU) Office. 2007 data set is lacking the description of the fuel, however data becomes more detailed with the recent years.
This record captures a comparison of Tongas electricity tariff against diesel whole price for the period 2001 - 2014. Electricity tariffs are captured on a quarterly and monthly period. Data was sourced from the Tonga Power Limited (TPL) via the Tonga Energy Roadmap - Implementation Unit (TERM IU, Feleti). Data is attached here as it was provided to SPC.
This record captures the petroleum & gas wholesale price and retail price for Tonga from 2001 - 2012. Data source is the Tonga Competent Authority, provided to SPC by the Tonga Energy Roadmap Implementation Unit (TERM IU) in 2014. Data is attached here as it was provided to SPC. Dataset captures the prices for kerosene, LPG, distillate fuel and unleaded petrol.
The focus of several past tropical cyclone (TC) studies in the Southwest Pacific (SWP) had been primarily at the regional scale, with little or no attention to the local-scale TC activity (i.e., at the country level). With the growing coastal population in the South Pacific Island countries, as well as increasing threats from and exposure to climate extremes mostly affecting vulnerable communities, examining TC-related risks at the country level is more imperative now than before.
A Report for the MESCAL Project, IUCN Oceania Office, Suva
Report No. 12/13
November 2012
The Census is the official count of population and dwellings in Tonga, providing a ‘snapshot’ of the society and its most precious resource, its people, at a point in time. The official reference period of the census was midnight, the 30th of November, 2006.
Tonga Household Income and Expenditure Survey 2009 (HIES), undertaken by the Tonga Statistics Department during the period from 1 January 2009 to 31 December 2009. This is the second survey of its kind in Tonga. The last one was carried out in 2000/01, and the results were used in November 2002 to rebase the Consumer Price Index (CPI). A report from that survey was produced in December 2002, and where possible, results from this report will be made to be comparable to the previous report.
• To provide updated information for the expenditure item weights for the CPI;
The census date was midnight, the 30th of November 2016. It is the official count of population, dwellings and households in Tonga and it provides a ‘snapshot’ of the country at one specific point in time: 30th of November 2016. Since 1956 until 2006, Census has been taken once in every ten years.
The Tongan NCD Risk Factors STEPS survey was a nation wide cross sectional assessment of 18 to 64 year olds carried out in from 12th of March to the 5th of May 2017 using WHO STEPS surveillance methodology and instruments.
This is the fourth Labor Force Survey of Tonga. The first one was conducted in 1990. Earlier surveys were conducted in 1990, 1993/94, and 2003 and the results of those surveys were published by the Statistics Department.
The Tonga Multiple Indicator Cluster Survey (MICS) was conducted in 2019 by the Tonga Statistics Department in collaboration with Ministry of Health with technical support of Ministry of Internal Affairs – Women’s Affairs and Gender Equality Division (WAGED) and other key Government Ministries UNICEF, UNFPA, the Pacific Community (SPC) and other partners. The survey provides statistically sound and internationally comparable data essential for developing evidence-based policies and programs, and for monitoring progress toward national goals and global commitments.
This record holds Tonga Power Limited (TPL) generation data from 2000 - 2014,. Data is sourced from the TPL, via the TERM IU Office (Feleti). Data captured include generation, losses, fuel consumed in generation, peak and minimum demand for the 4 grids in Tonga - Tongatapu, Vavau, Eua, Haapai.