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This Catalog contains Geographic Information System (GIS) data in georeferenced vector (point) and raster format. The vector (point) data are available in Environmental Systems Research Institute (ESRI) shapefile format and in comma-separated text (*.csv) files. Shapefiles generally include *.shp, *.shx, *.xml, and *.dbf files at a minimum. All of these data files also include the *.prj files, which contain the dataset projection information. The corresponding 4-km resolution raster data are available in ESRI GRID format. The GIS files have been bundled by year. Each data type (shp, GRID, csv) has a compressed WinRAR zip file—one for each year, hence every zip file may contain up to 12 months of data. In addition...
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Information about these images can be found in the Final Report for Sea-level Rise Response Modeling for San Francisco Bay Estuary Tidal Marshes. Site-specific data are available by request. Contact: Dr. John Y. Takekawa, USGS Western Ecological Research Center, San Francisco Bay Estuary Field Station, 505 Azuar Dr. Vallejo, Calif. 94592, 707-562-2000
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Information about these images can be found in the Final Report for Sea-level Rise Response Modeling for San Francisco Bay Estuary Tidal Marshes. Site-specific data are available by request. Contact: Dr. John Y. Takekawa, USGS Western Ecological Research Center, San Francisco Bay Estuary Field Station, 505 Azuar Dr. Vallejo, Calif. 94592, 707-562-2000
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Information about these images can be found in the Final Report for Sea-level Rise Response Modeling for San Francisco Bay Estuary Tidal Marshes. Site-specific data are available by request. Contact: Dr. John Y. Takekawa, USGS Western Ecological Research Center, San Francisco Bay Estuary Field Station, 505 Azuar Dr. Vallejo, Calif. 94592, 707-562-2000
Abstract: We measured stream temperature continuously during the 2011 summer run-off season (May through October) in nine watersheds of Southeast Alaska that provide spawning habitat for Pacific salmon. The nine watersheds have glacier coverage ranging from 0% to 63%. Our goal was to determine how air temperature and watershed land cover, particularly glacier coverage, influence stream temperature across the seasonal glacial meltwater hydrograph. Multiple linear regression models identified mean watershed elevation (related to glacier extent) and watershed lake coverage (%) as the strongest landscape controls on mean monthly stream temperature, with the weakest (May) and strongest (July) models explaining 86% and...
This sea-level rise modeling program began in 2008 and is located at the U.S. Geological Survey, Western Ecological Research Center. The focus is to provide site level ground data and results that land managers, planners, and those concerned with the conservation of salt marsh habitats can use to make well-informed climate change adaptation decisions. The work is being done by the USGS San Francisco Bay Estuary Field Station and Dixon Field Station researchers. This interdisciplinary research program objectives include understand the risk to salt marsh endangered species using sea-level rise modeling, storm monitoring, and movement of animals during high water events. In addition, the ability for salt marsh habitats...
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Palau’s Jellyfish Lake, locally known as Ongeim’l Tketau (OTM), is an iconic tourism site and an important area of biodiversity. This landlocked marine lake is part of the Rock Island Southern Lagoon UNESCO World Heritage Site, representing an expression of Palauan national pride, and has brought in millions of dollars to the local Koror State economy. OTM is also home to the unique Golden jellyfish, Mastigias papua etpisoni, a subspecies found nowhere else in the world. Populations of the Golden jellyfish within OTM have fluctuated extensively over past decades, with numbers sometimes hovering around a high of 30 million to periods of total population collapse that can last for multiple years. Scientific monitoring...
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Coral reef ecosystems serve as natural coastal defenses, support local island economies, and are important sources of food for coastal communities. However, an increase in coral bleaching events, and the associated declines of coral cover and diversity, are highly likely as sea surface temperatures continue to rise. Multiple coral bleaching events between 2013 and 2017 have already impacted the reefs of Guam and the Commonwealth of the Northern Mariana Islands, resulting in the loss of more than a third of shallow living-coral cover, with some species groups experiencing greater than 90% mortality. This devastating series of bleaching events strengthened existing partnerships between federal and local agencies and...
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Globally, shorelines provide a vital defense system against extreme weather and erosion events and are a critical public and cultural resource. Within the state of Hawaiʻi, coastal vulnerability and historic change has been well documented and studied on the Islands of Oʻahu, Maui, and Kauaʻi, but this has not been done for the Island of Hawaiʻi, the largest and most diverse island in the Hawaiian archipelago. For example, Hurricane Lane caused major flooding and coastal erosion on Hawaiʻi Island in 2018, but no comprehensive baseline shoreline dataset exists to document and quantify the changes it caused. To help fill this knowledge gap, this study aims to create a shoreline inventory of the entire coastline...
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The Gulf of Alaska is one of the most productive marine ecosystems on Earth, supporting salmon fisheries that alone provide large economic benefits to Southeast Alaska. The region also has a vibrant and growing tourism industry. Glaciers are central to many of the area’s natural processes and economic activities, but the rates of glacier loss in Alaska are among the highest on Earth. Glacier loss threatens to significantly change the amount and timing of nutrients delivered by streams to near-shore habitats. Changes in glacier runoff into the ocean may also impact coastal currents that contribute to vibrant nearshore marine ecosystems. Improving our understanding of how ecosystems depend on glaciers and what glacier...
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The Hawaiian Islands are home to many people and host a rich diversity of unique plant and animal life, but they are especially vulnerable to the effects of climate change because of their small size, geographical remoteness, and exposure to threats such as sea-level rise and increased storm surge. Developing predictions of future conditions is often the first step in helping decision makers and communities plan for change. However, to date, available global climate models have been too coarse in resolution to be useful for planning in the context of small, isolated islands. This project produced very high resolution climate projections for the Hawaiian islands of O‘ahu and Kaua‘i, providing information on key variables...
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Beaches and marshes provide critical habitat for many species of concern, including the piping plover, a shorebird which is endangered in parts of its range and threatened in others. These coastal environments also support tourism and recreation, and provide important services such as protecting infrastructure from wave inundation. Extreme storms and sea-level rise can alter these habitats, with implications for the species and communities that rely on them. This project seeks to test the utility of Unmanned Aerial Systems (UAS) for mapping and monitoring changes in coastal ecosystems. UAS provide a low-cost, low-risk means of acquiring high-resolution data when compared to on-the-ground fieldwork or traditional...
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In coastal Alaska, changes in snow, ice, and extreme weather events threaten human communities, critical infrastructure, valuable natural resources, and hunting and fishing livelihoods. Identifying how changing climate conditions impact Alaska’s coastal ecosystems, and how these changes may be tied to the ability of coastal communities to adapt to changing conditions, has been identified as a priority question in the state. In order to identify knowledge gaps and resource needs related to adaptation and resilience in coastal Alaska, the Alaska Climate Science Center partnered with the U.S. Fish and Wildlife Service, the Aleutian Pribilof Islands Association, and others in 2016 to hold a series of workshops in...
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To assess the current topography of the tidal marshes we conducted survey-grade elevation surveys at all sites between 2009 and 2013 using a Leica RX1200 Real Time Kinematic (RTK)Global Positioning System (GPS) rover (±1 cm horizontal, ±2 cm vertical accuracy; Leica Geosystems Inc., Norcross, GA; Figure 4). At sites with RTK network coverage (San Pablo, Petaluma, Pt. Mugu, and Newport), rover positions were received in real time from the Leica Smartnet system via a CDMA modem (www.lecia-geosystems.com). At sites without network coverage (Humboldt, Bolinas, Morro and Tijuana), rover positions were received in real time from a Leica GS10 antenna base station via radio link. When using the base station, we adjusted...
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All of these files are Microsoft Excel format files that contain water level data. We deployed 1-4 water level loggers and a single conductivity logger at all sites over the study period (Figure 6; Table 2). Primary water level loggers and conductivity loggers were deployed in major tidal channels connecting the marshes to the estuary. Secondary water level loggers were deployed in the upper reaches of second-order tidal channels to capture high tides and determine inundation patterns. Water level readings were collected every six minutes. We used data from the primary water level logger at each site to develop local hydrographs and inundation rates. Loggers were surveyed by RTK GPS at least once during the period...
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To assess the current topography of the tidal marshes we conducted survey-grade elevation surveys at all sites between 2009 and 2013 using a Leica RX1200 Real Time Kinematic (RTK)Global Positioning System (GPS) rover (±1 cm horizontal, ±2 cm vertical accuracy; Leica Geosystems Inc., Norcross, GA; Figure 4). At sites with RTK network coverage (San Pablo, Petaluma, Pt. Mugu, and Newport), rover positions were received in real time from the Leica Smartnet system via a CDMA modem (www.lecia-geosystems.com). At sites without network coverage (Humboldt, Bolinas, Morro and Tijuana), rover positions were received in real time from a Leica GS10 antenna base station via radio link. When using the base station, we adjusted...
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To assess the current topography of the tidal marshes we conducted survey-grade elevation surveys at all sites between 2009 and 2013 using a Leica RX1200 Real Time Kinematic (RTK)Global Positioning System (GPS) rover (±1 cm horizontal, ±2 cm vertical accuracy; Leica Geosystems Inc., Norcross, GA; Figure 4). At sites with RTK network coverage (San Pablo, Petaluma, Pt. Mugu, and Newport), rover positions were received in real time from the Leica Smartnet system via a CDMA modem (www.lecia-geosystems.com). At sites without network coverage (Humboldt, Bolinas, Morro and Tijuana), rover positions were received in real time from a Leica GS10 antenna base station via radio link. When using the base station, we adjusted...
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The UAV imagery was collected by the Hawaii Coastal Geology Group of the University of Hawai'i, Manoa in August of 2017 for USGS. The UAV model is Phantom 4 with the camera model FC6310. The UAV was flown 90 meters above sea level at site Rita and 100 meters above sea level at site AIPA.
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Coastal zone managers and researchers often require detailed information regarding emergent marsh vegetation types (that is, fresh, intermediate, brackish, and saline) for modeling habitat capacities and needs of marsh dependent taxa (such as waterfowl and alligator). Detailed information on the extent and distribution of emergent marsh vegetation types throughout the northern Gulf of Mexico coast has been historically unavailable. In response, the U.S. Geological Survey, in collaboration with the Gulf Coast Joint Venture, the University of Louisiana at Lafayette, Ducks Unlimited, Inc., and the Texas A&M University-Kingsville, produced a classification of emergent marsh vegetation types from Corpus Christi Bay,...
map background search result map search result map Very High Resolution Climate Projections for the Islands of O‘ahu and Kaua‘i Marsh types from Corpus Christi Bay, Texas, to the Sabine River, Texas, in 2010 Ice2O: A Continued Assessment of Icefield-to-Ocean Change in the Pacific Coastal Temperate Rainforest Mapping Coastal Change Using Unmanned Aerial Systems: A Pilot Study Morro Bay, Tidal Marsh Elevation Points Pt Mugu, Tidal Marsh Elevation Points Bolinas, California: Tidal Marsh Digital Elevation Model Tidal Marsh Water Monitoring Data Promoting Coastal Resilience and Adaptation in Alaska: Community Outreach and Engagement Majuro UAV data Using Cutting-Edge Technology to Assess Coral Reef Bleaching Events and Recovery Rates in Guam and the Commonwealth of the Northern Mariana Islands Generating a Shoreline Inventory for Hawai‘i Island to Increase Resilience in the Face of Rising Sea Levels Forecasting the Future of Ongeim’l Tketau (Jellyfish Lake), Palau in a Changing Climate Forecasting the Future of Ongeim’l Tketau (Jellyfish Lake), Palau in a Changing Climate Pt Mugu, Tidal Marsh Elevation Points Bolinas, California: Tidal Marsh Digital Elevation Model Morro Bay, Tidal Marsh Elevation Points Majuro UAV data Very High Resolution Climate Projections for the Islands of O‘ahu and Kaua‘i Mapping Coastal Change Using Unmanned Aerial Systems: A Pilot Study Using Cutting-Edge Technology to Assess Coral Reef Bleaching Events and Recovery Rates in Guam and the Commonwealth of the Northern Mariana Islands Marsh types from Corpus Christi Bay, Texas, to the Sabine River, Texas, in 2010 Ice2O: A Continued Assessment of Icefield-to-Ocean Change in the Pacific Coastal Temperate Rainforest Tidal Marsh Water Monitoring Data Generating a Shoreline Inventory for Hawai‘i Island to Increase Resilience in the Face of Rising Sea Levels Promoting Coastal Resilience and Adaptation in Alaska: Community Outreach and Engagement