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Folders: ROOT > ScienceBase Catalog > National and Regional Climate Adaptation Science Centers > Pacific Islands CASC > FY 2015 Projects ( Show all descendants )

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Coral ecosystems of West Maui support a vibrant tourism industry and provide tangible economic benefits to the community. Hawaiian nearshore reefs generate about $800 million in annual revenue, not including the ecosystem services they provide - such as critical habitat for diverse fish species and buffering coasts from storm surges. The Hawaiian economy depends on healthy coral ecosystems, yet reefs are currently facing multiple threats, including changing climate conditions, local land-based pollution, and sediment erosion. Erosion of soils into nearshore coastal zones is a chief concern facing land managers in West Maui. Intermittent rainfall can carry sediment from sources such as dirt roads, agricultural fields,...
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Small Pacific islands are especially vulnerable to climate change. Challenges these coastal communities face include sea level rise, erosion, saltwater intrusion, flooding, droughts, and coral bleaching which in turn affect food and water security, infrastructure, and the health of humans and ecosystems. These small islands also have limited resources; therefore, managing them effectively is important to ensure sustainable communities and healthy environments. To support natural resource management, accurate, detailed, up-to-date geospatial data and products are vital to help monitor these resources, identify potential threats, and reveal potential solutions. Through this project, the University of Guam (UoG)...
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This project was designed to use climate models to produce projections of changes in sea temperatures and ocean chemistry for coastal marine areas in Micronesia as well as reports that describe the outlook of culturally important marine sites in Guam and CNMI. The projections and maps were expected show what the current state of climate science suggests the future holds for marine areas in Micronesia if we continue to use fossil fuels aggressively. These projections of sea conditions will become the foundation of outlook reports for Tumon Bay in Guam, Lao Lao Bay and Saipan Lagoon in Saipan, and northern Tinian Island. The selected areas are among the most important sites for recreation in Guam and CNMI and, as...
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Over the past century, Hawaiʻi has experienced a pronounced decline in precipitation and stream flow and a number of severe droughts. These changes can have wide-reaching implications, affecting the water supply, native vegetation and wildlife, wildfire patterns, and the spread of invasive species. Several climate-related factors are influencing Hawaiˈi’s landscapes and contributing to these changes. These include climate change, climate variability, and drought (referred to collectively as CCVD). Climate variability describes how the climate fluctuates on a yearly basis around average values, while climate change describes patterns of long-term continuous change in the average. While it is understood that CCVD...
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Increasing numbers of hazardous inundation events due to climate change is a serious threat to the culture, habitat, and infrastructure of the Hawaiian and U.S.-Affiliated Pacific Islands. The information currently available to stakeholders, however, is primarily confined to maximum or mean water level and does not include how often incursions are likely to occur. We propose to quantify the effect of local factors and Pacific climate variability on the frequency of inundation events in centers of population and infrastructure in Pacific island communities. We will produce seasonal outlooks that project the number of incursions above a given level at a particular site in 3-6 month windows. We choose seasonal outlooks,...
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In order to better document, manage, and adapt to the impacts of future climate variability and change on diverse natural resources in Hawaiʻi and the US Affiliated Pacific Islands (USAPI), several regional climate research programs including the Pacific RISA, the PICCC, the NOAA RCSD, and the East-West Center came together in 2011-2012 to collaboratively produce the Pacific Islands Regional Climate Assessment (PIRCA) (Keener, 2012) for the 2014 U.S. National Climate Assessment (NCA). Natural resource managers in sectors such as freshwater, coastal inundation and hazard response, and marine and terrestrial ecosystems need frequently updated summaries of regional and local climate trends, projections, and impacts...
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Clouds often come in contact with vegetation (often named fogs) within a certain elevation range on Hawaiʻi’s mountains. Propelled by strong winds, cloud droplets are driven onto the stems and leaves of plants where they are deposited. Some of the water that accumulates on the plants in this way drips to the ground, adding additional water over and above the water supplied by rainfall. Prior observations show that the amount of cloud water intercepted by vegetation is substantial, but also quite variable from place to place. It is, therefore, important to create a map for the complex spatial patterns of cloud water interception (CWI) in Hawaiʻi. In this project, we proposed to create the CWI map at 0.8-km resolution...
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On Hawai‘i’s mountains, cloud droplets, propelled by strong winds, are deposited on plants, where they accumulate and drip to the ground, adding water over and above that supplied by rainfall. Prior studies show that the amount of intercepted cloud water is substantial, and variable from place to place. Estimates of the spatial patterns of cloud water interception (CWI), the fog-related effects on plants, and the contributions of fog to groundwater recharge and surface water flows are needed to better understand the water cycle and predict effects of climate change on water supply and ecosystems. We will make measurements of fog, wind, fog interception, soil moisture, and fog effects on plant water use and plant...
    map background search result map search result map Projecting the Frequency and Impact of Future Coastal Flooding and Inundation Events in the Pacific Islands Assessing the Sustainability of Culturally Important Marine Sites in Guam and CNMI Cloud Water Interception in Hawai‘i - Part 1: Understanding the Impact of Fog on Groundwater and Ecosystems and Future Changes to these Processes Cloud Water Interception in Hawaiʻi - Part 2: Mapping Current and Future Exchange of Water Between Clouds and Vegetation in Hawaiʻi's Mountains Understanding Sediment Transport to Coastal Waters and Coral Reefs in West Maui Supporting a Collaborative Regional Assessment of Future Climate Impacts on Natural Resources in the Pacific Islands Influences of Climate Change, Climate Variability, and Drought on Human Communities and Ecosystems in Hawaiʻi Building Capacity for Coordination of Strategic Science Research in the US-Affiliated Pacific Islands Understanding Sediment Transport to Coastal Waters and Coral Reefs in West Maui Assessing the Sustainability of Culturally Important Marine Sites in Guam and CNMI Cloud Water Interception in Hawai‘i - Part 1: Understanding the Impact of Fog on Groundwater and Ecosystems and Future Changes to these Processes Cloud Water Interception in Hawaiʻi - Part 2: Mapping Current and Future Exchange of Water Between Clouds and Vegetation in Hawaiʻi's Mountains Influences of Climate Change, Climate Variability, and Drought on Human Communities and Ecosystems in Hawaiʻi Building Capacity for Coordination of Strategic Science Research in the US-Affiliated Pacific Islands Projecting the Frequency and Impact of Future Coastal Flooding and Inundation Events in the Pacific Islands Supporting a Collaborative Regional Assessment of Future Climate Impacts on Natural Resources in the Pacific Islands