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List of islands of Tuvalu: Difference between revisions

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{{Short description|none}} <!-- This short description is INTENTIONALLY "none" - please see WP:SDNONE before you consider changing it! -->
{{Short description|List of islands of Tuvalu}}
 
[[Tuvalu]] consists of nine separate islands: six [[atoll]]s and three [[reef]] islands.<ref name="SOPAC">{{cite web |title= EU-SOPAC Project Report 50: TUVALU TECHNICAL REPORT High-Resolution Bathymetric Survey Fieldwork undertaken from 19 September to 24 October 2004 |publisher= Pacific Islands Applied Geoscience Commission c/o SOPAC Secretariat|date=October 2018 |url= ftp://ftp.gouv.nc/sig/PUBLIC/club_geomatique/2017/GT_donnees_geo_maritimes_22_06_2017/Rapport_de_leve_CPS.pdf| access-date=21 October 2019 }}</ref> An atoll typically consists of several [[isletIslet#Other_terms|motus]]s: Tuvalu has a total of 124 islands and islets. Each island is surrounded by a [[coral reef]]. The soils of Tuvalu's islands are usually shallow, porous, alkaline, coarse-textured, with carbonate mineralogy and high [[pH]] values of up to 8.2 to 8.9.<ref name="CBD5">{{cite web| last = | first = |title= Tuvalu Fifth National Report to the Convention on Biological Diversity|publisher= Government of Tuvalu|page=|year = 2016|url= https://www.cbd.int/reports/search/ | accessdate=11 November 2023}}</ref> The soils are usually deficient in most of the important nutrients needed for plant growth, so garden beds need to be enhanced with [[mulch]] to increase their fertility.<ref name="CBD5"/> Tuvalu's small, widely scattered atolls have a total land area of only about {{convert|26|km2|0|abbr=off}} making Tuvalu the [[List of sovereign states by area|fourth-smallest country in the world]].
 
The sea level at the Funafuti tide gauge has been rising at a rate of 3.9&nbsp;mm per year, and it has been determined that [[sea level rise|rising sea levels]] are causing more wave energy to be transferred across reef surfaces, which has tended to push more sand onto island shorelines, increasing islands’ land area.<ref name="PSK">{{cite journal| last = Paul S. Kench, Murray R. Ford & Susan D. Owen |title= Patterns of island change and persistence offer alternate adaptation pathways for atoll nations |journal= Nature Communications |date = 9 February 2018|volume= 9 |issue= 1 |page= 605 |doi= 10.1038/s41467-018-02954-1 |pmid= 29426825 |pmc= 5807422 }}</ref> Over a recent four-decade period, there was a net increase in the land area of the islets of 2.9% (73.5 ha), although the changes were not uniform: About 74% of them increased in size and about 27% decreased in size.
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| [[Funafuti]]||[[Vaiaku]]|| align="right" | 2.40 || align="right" | 277||align=right| 6,320 || align="right" | 30||align=right|9||8°31′S 179°13′E
|-bgcolor="#ffffff"
| [[Nanumea]]||[[NanumeaLolua]]|| align="right" | 3.87|| align="right" | 22||align=right| 512 || align="right" | 5||align=right|2||05°41′S 176°09′E
|- bgcolor="#ffffff"
| [[Nui (atoll)|Nui]]||[[Tanrake]]|| align="right" | 2.83|| align="right" | 17||align=right| 610 || align="right" | 21||align=right|4||07°13′29″S 177°09′37″E
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