Rainfall in RMI overall has steadily declined over the last 45 years
The Republic of the Marshall Islands (RMI) is a large-ocean state with a total land area of only 182 square km, spread across over two million square kilometers of ocean. There are 24 inhabited atolls and islands, which are mostly remote and lie merely 2 metres above sea level on average. There are no rivers, streams or lakes in RMI and the number of small surface ponds is very limited.
Based on data from two rainfall recording stations operational since 1945 and 1955, the rainfall in RMI overall has steadily declined over the last 45 years.
Warming trends are evident, with mean temperatures showing a statistically significant upward trend. Data indicates the number of warm days is increasing and cool nights decreasing (recorded by stations at Majuro and Kwajalein).
Historic observation data indicate that the sea level has risen near Majuro by about 7mm per year since 1993. This is larger than the global average of 2.8–3.6 mm per year.
King tides (very high spring tides that typically occur between November to March – not the result of storm surge) are a common phenomenon in RMI and the consistent inundation from tides and tidal/storm surge flooding compromises groundwater as a potential drinking and cooking water source.
For more information on the project, titled ‘Addressing Climate Vulnerability in the Water Sector (ACWA) in the Marshall Islands’ , please click visit https://www.adaptation-undp.org/projects/GCF/marshallislands/water
Photos available upon request.
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