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The territory of American Samoa is highly vulnerable to the negative effects of climate change and there are many local agencies working towards adapting to this problem. These efforts often require organization, interpretation, or presentation of large amounts of data and information. However, those who directly need these data often do not have the time or experience to synthesize them in a form that meets their needs. To help climate adaptation and natural resource managers in American Samoa meet this challenge, this project aims to build a system of open-access, web-based tools to help managers and community members collect, download, and view GIS and climate related data thereby supporting a wide range of...
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Continued sea-level rise from a changing climate is expected to result in the loss of many coastal mangrove trees, which, will strongly affect human populations on isolated Western Pacific islands as they rely heavily on mangrove forests for food (fish, shrimp, and crabs), building materials, and firewood. Mangroves also protect local communities from tsunamis and cyclones and are important for climate change mitigation because they remove and store large amounts of atmospheric CO2 in trees and sediments. Mangroves have kept up with sea-level rise in the past by building up their forest floor elevations relative to sea level through tree root growth and accumulation of sediments delivered by adjacent rivers or oceans....
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These spatial data layers form the bases for the Governance Vulnerability Analysis which is incorporated into the project's Story Map which integrates resident consumption, spatial and climate vulnerability, and governance analysis, with research findings discussed at the end. Ridge-to-reef for coastal food security in Palau StoryMap: https://uhm.maps.arcgis.com/apps/Cascade/index.html?appid=5eb69132599942479a1b958c7977a970
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Alamagan Volcano is a Quaternary stratovolcano along the Mariana Arc, an active subduction zone in the western Pacific Ocean. Although primarily submerged, its peak reaches above sea level, with subaerially-exposed volcanic deposits dating back through the Holocene to the late Pleistocene. These feature data represent such deposits and other geologic features of Alamagan Volcano, describing its interpreted eruptive history.
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This dataset combines the work of several different projects to create a seamless data set for the contiguous United States. Data from four regional Gap Analysis Projects and the LANDFIRE project were combined to make this dataset. In the northwestern United States (Idaho, Oregon, Montana, Washington and Wyoming) data in this map came from the Northwest Gap Analysis Project. In the southwestern United States (Colorado, Arizona, Nevada, New Mexico, and Utah) data used in this map came from the Southwest Gap Analysis Project. The data for Alabama, Florida, Georgia, Kentucky, North Carolina, South Carolina, Mississippi, Tennessee, and Virginia came from the Southeast Gap Analysis Project and the California data was...
Categories: Data; Types: ArcGIS REST Map Service, Map Service; Tags: Alabama, Alaska, Aleutian and Berind Sea Islands, Appalachian, Arctic, Northwestern Interior Forest, All tags...
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This dataset combines the work of several different projects to create a seamless data set for the contiguous United States. Data from four regional Gap Analysis Projects and the LANDFIRE project were combined to make this dataset. In the northwestern United States (Idaho, Oregon, Montana, Washington and Wyoming) data in this map came from the Northwest Gap Analysis Project. In the southwestern United States (Colorado, Arizona, Nevada, New Mexico, and Utah) data used in this map came from the Southwest Gap Analysis Project. The data for Alabama, Florida, Georgia, Kentucky, North Carolina, South Carolina, Mississippi, Tennessee, and Virginia came from the Southeast Gap Analysis Project and the California data was...
Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Alabama, Alaska, Aleutian and Berind Sea Islands, Appalachian, Arctic, Northwestern Interior Forest, All tags...
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The Pacific Islands CASC aims to provide capacity building opportunities for undergraduate and graduate students, post-docs, and early career professionals across the region. Direct participation on PI-CASC co-produced research projects will help them gain invaluable experience to prepare for future careers in research, resource managment, and policy, and help to enhance future professional workforce capacity in their own Pacific communities. Our current programs are: UH Manoa Graduate Scholars This program provides full funding opportunities to graduate students whose research reflects DOI, USGS, and PI-CASC priorities on climate science in the region. The students will also have professional development opportunities...
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Hawaiʻi’s native forests supply the state with freshwater, support cultural practices, and are home to more than 10,000 plants and animals found nowhere else in the world. However, they are also threatened by the spread of invasive species and may be vulnerable to shifting temperature and rainfall patterns brought about by climate change. Through this project, scientists sought to better understand how native and non-native forests in Hawaiʻi will respond to climate change. Researchers used field data from two long-term monitoring sites in Hawaiʻi Volcanoes National Park to model the effects of projected climate change on two forest ecosystems, one dominated by the native ʻōhiʻa tree and the other by the invasive...
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The climate in Hawai‘i is changing, and alterations in rainfall amount and distribution have implications for future vegetation cover, non-native species invasions, watershed function, and fire behavior. As novel ecosystems and climates emerge in Hawai‘i, particularly hotter and drier climates, it is critical that scientists produce locally relevant, timely and actionable science products and that managers are able to access the best-available science. Managers and researchers have identified that a knowledge exchange process is needed for drought in Hawai‘i to allow for formal collaboration between the two groups to co-produce drought data and products. To address this need, this project will pilot a focused...
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Land, water, and natural resource managers and planners across Hawai’i are tasked with making important decisions about the state’s future. Reliable projections of Hawaiʻi's climate are needed to inform these decisions. This project aims to provide this needed scientific information to resource managers by improving estimates of Hawaiʻi’s near-term climate for the coming years and decades. The goal of this project is to develop very high-resolution climate projections for the Hawaiian Islands over the period from 2010 to 2039. This timeframe is novel. Most climate projections for Hawai’i are for the end of the century. In contrast, the timeframe of this study is “now”, which has intuitive relevance to resource...
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Coral reefs are threatened by climate change because warming ocean temperatures are causing corals to bleach (i.e. lose the algae that provides them with the majority of their energy) which can lead to coral starvation and death. Local environmental conditions can contribute to either the resilience or susceptibility of corals to the global stress of climate change. One such factor is the local nutrient input from terrestrial sources. Corals near remote islands with abundant seabird populations have been found to have increased growth rates and are more resilient to bleaching events than corals near islands without seabirds. Seabirds supply the reef with ample nutrients via their guano (seabird excreted waste) and...
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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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Assessments that incorporate areas from land-to-ocean, or “ridge-to-reef", are critical to examine how land-use practices are altering stream discharge and nearshore marine health and productivity. Stream systems in both Alaska and Hawaiʻi are expected to experience changes in water quality associated with changing environmental conditions and increased human-use. Watershed systems throughout the Hawaiian Islands are currently experiencing impacts from climate change that affect groundwater recharge and surface runoff, erosion, and total streamflow, and cause degradation of nearshore marine habitats. This study can provide useful insight for both Alaska and Hawaiʻi by providing resources on how patterns in stream...
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This raster stack contains 15 probability layers representing the pixel-level predicted probability of membership in each species-specific vegetation class from 0 to 1. These probability layers can be used to generate class membership uncertainty maps or probabilistic class cover maps from the model outputs. They provide additional information beyond the discrete categorial land cover assignments.
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A sensitivity analysis of groundwater-recharge estimates from a water-budget model was completed for the islands of Oahu and Maui, Hawaii (Johnson and others, 2023). Results of the sensitivity analysis were used to quantify the relative importance of selected model parameters to recharge estimates for three moisture zones (dry, mesic, and wet) on Oahu and Maui. This shapefile contains the boundaries of the moisture zones and boundaries of the model subareas that were used in the model simulations for Maui. The shapefile attributes include the names of the land-cover types assigned to model subareas and the mean annual recharge values determined for the model subareas for the baseline scenario of the sensitivity...
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Research at the Pacific Island Ecosystems Research Center focuses on providing the scientific understanding and technologies needed to support and implement sound management and conservation of our Nation's biological resources occurring in Hawai'i and other Pacific island locations.
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Abundant scientific research has characterized the relationships between climate and fire in ecosystems of the United States, and there is substantial evidence that the role of fire in ecosystems is likely to change with a changing climate. Changing fire patterns pose numerous natural resource management challenges and decision makers in natural-resource management increasingly require information about potential future changes in fire regimes to effectively prepare for and adapt to climate change impacts. An effective forward-looking fire science synthesis is urgently required to reflect the changing dimensions of human fire management, recognizing that fire causes, effects, impacts, and management are all interrelated...
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Invasive species have had devastating effects on Pacific Island biodiversity, ecosystem services, food, infrastructure, culture, and public health. Meanwhile, climate change is expected to worsen droughts and wildfires, increase storm severity, and raise the temperature, acidity, and sea level, all of which exacerbate invasive species issues and complicate management. Invasive species managers in the area are concerned about the impacts of climate change but are not satisfied with the knowledge currently available to help address these threats. They critically need easily accessible information, tools, and products that can help improve invasive species management in the face of climate change. The Pacific Regional...
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Maui’s threatened Haleakalā silversword forms the foundation of a diverse high-elevation community on Haleakalā, and is an ideal species for assessing how this ecosystem is responding to climate change. The silversword’s striking appearance makes it one of Hawaiʻi’s most recognizable species, and it is one of the main attractions drawing 1-2 million tourists to Haleakalā National Park each year. The plant was once considered a conservation success, when active management led to a population recovery in the early 20th century. Unfortunately, silversword populations are now declining, and climate change – namely decreasing precipitation and increasing temperatures – is thought to be responsible. The goal of this...
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Coral reefs are declining worldwide due to a combination of stressors, but climate induced ocean warming is the biggest threat. Warming oceans lead to ‘coral bleaching’ and frequent death, compromising the structure and function of reefs. The increasing frequency and severity of bleaching means that human intervention is needed to support the adaptive capacity of reefs. Most proposed interventions involve the movement of corals, but the outcomes of these strategies are almost completely unknown. To bridge this knowledge gap, this project aims to assess how restoration to enhance resilience within coral reefs can effectively reduce climate change threats while also gaining a better understanding of socio-cultural...
map background search result map search result map Assessing Viability of the Haleakalā Silversword to Uncover the Effects of Climate Change on Hawaiˈi’s High-Elevation Ecosystems Understanding the Response of Native and Non‐Native Forests to Climate Variability and Change U.S. Geological Survey Gap Analysis Project- Land Cover Data v2.2 U.S. Geological Survey Gap Analysis Program- Land Cover Data v2.2- Ecological Systems Land Use Pacific Island Ecosystems Research Center Projecting the Frequency and Impact of Future Coastal Flooding and Inundation Events in the Pacific Islands Near-term Climate Projections to Inform Adaptation in the Hawaiian Islands Working with Natural Resource Managers to Co-Produce Drought Analyses in Hawai‘i Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Capacity Building Through Student Programs Ecological and Socio-Cultural Responses to Transplanting Corals to Enhance Reef Resilience Near Oʻahu Future of Fire: Towards a National Synthesis of Wildland Fire Under a Changing Climate Coral Response to Land-to-Ocean Freshwater Flux: A Ridge-to-Reef Perspective Developing the American Samoa Climate and GIS Data Portal: A Collaborative Approach to Enhancing Data Availability and Adaptation Capacity Developing a Pacific Mangrove Monitoring Network (PACMAN) in Response to Sea Level Rise Unlocking Resilience Drivers to Inform Pacific Coral Reef Management Spatial Data Layers for Ridge-to-Reef Governance Vulnerability Analysis in Palau Model subareas and moisture zones used in a sensitivity analysis of a water-budget model completed in 2022 for the island of Maui, Hawaii Advancing the Pacific Regional Invasive Species and Climate Change Network High-Resolution Land Cover Maps of Lāna‘i, Hawai‘i, 2020 - Class Probability Stack Assessing Viability of the Haleakalā Silversword to Uncover the Effects of Climate Change on Hawaiˈi’s High-Elevation Ecosystems Digital database of the geologic map of Alamagan Volcano, northern Mariana Islands Developing the American Samoa Climate and GIS Data Portal: A Collaborative Approach to Enhancing Data Availability and Adaptation Capacity High-Resolution Land Cover Maps of Lāna‘i, Hawai‘i, 2020 - Class Probability Stack Spatial Data Layers for Ridge-to-Reef Governance Vulnerability Analysis in Palau Ecological and Socio-Cultural Responses to Transplanting Corals to Enhance Reef Resilience Near Oʻahu Understanding the Response of Native and Non‐Native Forests to Climate Variability and Change Coral Response to Land-to-Ocean Freshwater Flux: A Ridge-to-Reef Perspective Pacific Island Ecosystems Research Center Near-term Climate Projections to Inform Adaptation in the Hawaiian Islands Working with Natural Resource Managers to Co-Produce Drought Analyses in Hawai‘i Unlocking Resilience Drivers to Inform Pacific Coral Reef Management Advancing the Pacific Regional Invasive Species and Climate Change Network Projecting the Frequency and Impact of Future Coastal Flooding and Inundation Events in the Pacific Islands Capacity Building Through Student Programs Developing a Pacific Mangrove Monitoring Network (PACMAN) in Response to Sea Level Rise U.S. Geological Survey Gap Analysis Project- Land Cover Data v2.2 Future of Fire: Towards a National Synthesis of Wildland Fire Under a Changing Climate U.S. Geological Survey Gap Analysis Program- Land Cover Data v2.2- Ecological Systems Land Use