Changes Dataset of Hunga Tonga–Hunga Ha'apai Island (2009-2022)
SHI Ruixiang1LIU Chuang1ZHANG Lianchong2
1 Institute of Geographic Sciences and Natural Resources Research，Chinese Academy of Sciences，Beijing 100101，China2 Aerospace Information Research Institute，Chinese Academy of Sciences，Beijing 100094，China
DOI:10.3974/geodb.2022.03.09.V1
Published:Mar. 2022
Visitors：1800 Data Files Downloaded：64
Data Downloaded：15.11 MB Citations：
Key Words：
Hunga Tonga-hunga Ha’apai Island,Tonga,Hunga Ha’apai Island,Hunga Tonga Island
Abstract：
The Hunga Tonga–Hunga Ha'apai Island is located 68 km northwest of Nuku'alofa, the capital of Tonga, and in the western of South Pacific Ocean. The center of the island lies 20°32′38″S, 175°23′37″W based on data in 2016, when it is an union island. The island is affected by volcanic activities, sometimes appearing as separated two islands (2009, 2013, 2022), one is Hunga Tonga Island in the east; the other one is Hunga Ha'apai Island in the west; and sometimes as one (2016, 2021). During 2009-2022, the minimum area of the island was 0.25 km², which occurred on January 17, 2022. The maximum area of the island is 3.06 km², which occurred on May 19, 2016 based on Google Earth and World View images. The dataset includes the boundary data of the island on June 15, 2009, November 15, 2013, May 19, 2016, April 10, 2021 and January 17, 2022. The dataset is archived in .mdb and .kmz data formats, it consists of six data files with data sieze of 1.17 MB.
Foundation Item：
Ministry of Science and Technology of P. R. China (2021YFE0117300)
Data Citation：
SHI Ruixiang, LIU Chuang, ZHANG Lianchong.Changes Dataset of Hunga Tonga–Hunga Ha'apai Island (2009-2022)[J/DB/OL]. Digital Journal of Global Change Data Repository, 2022. https://doi.org/10.3974/geodb.2022.03.09.V1.
References：
[1] Liu, C., Shi, R. X., Zhang, Y. H., et al. Global multiple scale shorelines dataset based on Google Earth images (2015) [J/DB/OL]. Digital Journal of Global Change Data Repository, 2019. DOI: 10.3974/geodb.2019.04.13.V1.
[2] Liu, C., Shi, R. X., Zhang, Y. H., et al. 2015: How many islands (isles, rocks), how large land areas, and how long of shorelines in the world? —Vector data based on Google Earth images [J]. Journal of Global Change Data & Discovery, 2019, 3(2): 124-148. DOI: 10.3974/geodp.2019.02.03.
[3] Editorial Group of the Chinese-foreign Language Handbook of Global Geographical Names. Chinese-foreign Language Handbook of Global Geographical Names [M]. Beijing: SinoMaps Press. 1999.
[4] Wikipedia, the free encyclopedia. Hunga Tonga–Hunga Ha'apai [OL]. http://en.volupedia.org/wiki/Hunga_Tonga%E2%80%93Hunga_Ha%27apai.
[5] World View [DB]. http://worldview2.digitalglobe.com.
[6] David, A. Y., Melissa, A. S., Frank, J. S., et al. Under the surface: pressure-induced planetary-scale waves, volcanic lightning, and gaseous clouds caused by the submarine eruption of Hunga Tonga-Hunga Ha’apai Volcano provide an excellent research opportunity [J]. Earthquake Advances Research, 2022.
Data Product:
| ID |
Data Name |
Data Size |
Operation |
| 1 |
HungaTonga-HungaHaapai.mdb |
1092.00KB |
|
| 2 |
HungaTonga-HungaHaapai20090615.kmz |
25.39KB |
|
| 3 |
HungaTonga-HungaHaapai20131115.kmz |
11.33KB |
|
| 4 |
HungaTonga-HungaHaapai20160519.kmz |
14.57KB |
|
| 5 |
HungaTonga-HungaHaapai20210410.kmz |
11.75KB |
|
| 6 |
HungaTonga-HungaHaapai20220117.kmz |
52.66KB |
|