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Dan A. Polhemus

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The Department of the Interior Pacific Islands Climate Science Center (PI-CSC) supports adaptation in Hawai‘i and the US Affiliated Pacific Islands by producing new knowledge and tools through research, working with resource managers and community planners to incorporate environmental knowledge in adaptation decision making, and providing education and training to build capacity in resource managers and scientists. In the Pacific Islands region, over 500 endangered and other vulnerable species exist in a complex set of landscapes and seascapes. People, built environments, natural heritage, agriculture, and economies are interwoven in a patchwork compressed onto small land areas. Therefore, a holistic approach to...
Categories: Publication; Types: Citation
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The Hawaiian archipelago in the subtropical central North Pacific Ocean consists of a mix of generally steep-sided, rocky high islands in the southeast and low-lying coral atolls in the northwest. Due to their topography, these islands harbor a relatively limited number of wetland ecosystems, although the features that are present are diverse, ranging from a hypersaline lake on Laysan, to acidic upland bogs such as Pepeopae on Molokai, to large freshwater marshes such as Kawainui on Oahu. Because of this diversity of wetland ecosystem types and elevation settings, the effects of future climate change on Hawaiian wetlands are wide-ranging, and specific to individual wetland systems on the various islands. The current...
Categories: Publication; Types: Citation; Tags: Water, Coasts and Ice, Wetlands
Although tropical Pacific islands are generally perceived as having wet climates, they are vulnerable to periodic episodes of drought. This literature review strives to establish a base of information relating to such drought events in the U. S.- affiliated Pacific Islands (USAPI), a vast expanse of the oceanic Pacific larger than the North American continent, spanning five time zones and the International Date Line roughly between the southern Tropic of Capricorn across the equator to the northern Tropic of Cancer. The USAPI include the Territories of American Samoa and Guam, Commonwealth of the Northern Mariana Islands, and the Freely Associated States of the Republic of Palau, Federated States of Micronesia,...
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