Grainsize and Mineralogy Data of Sediments Samples Collected at Crocker Reef, Florida, 2013-2014

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Understanding the processes that govern whether a coral reef is accreting (growing) or dissolving are fundamental to questions of reef health and resiliency. A total of 52 surficial sediment samples were collected within a 1-km x 1-km area around Crocker Reef in the Florida Keys, USA, between 2013 and 2014. Samples 1-35 were collected in July 2013 and samples 36-52 were collected in July 2014. The samples were processed using conventional, published techniques (see process step 2) to yield grain size and mineralogical data. The dataset, CRKR2013-2014_SEDIMENT_Mineralogy.zip contains a spreadsheet with mineralogical data for each sample. The dataset, CRKR2013-2014_SEDIMENT_GrainSize.zip contains a spreadsheet with grain size data for each sample.

Photomicrograph Images of Sediment Samples Collected at Crocker Reef, Florida, 2013-2014

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Understanding the processes that govern whether a coral reef is accreting (growing) or dissolving are fundamental to questions of reef health and resiliency. A total of 52 surficial sediment samples were collected within a 1-km x 1-km area around Crocker Reef in the Florida Keys, USA, between 2013 and 2014. Samples 1-35 were collected in July 2013 and samples 36-52 were collected in July 2014. The samples were processed using conventional, published techniques (see process step section) to yield grain size and mineralogical data. The dataset, CRKR2013-2014_SEDIMENT_Images.zip contains photomicrograph images that correspond to each sediment sample. These images also include additional, survey-specific EXchangable Image File format (EXIF) header information.

Photomicrograph Images of Sediment Samples Collected at Crocker Reef, Florida, 2013-2014

공공데이터포털

Understanding the processes that govern whether a coral reef is accreting (growing) or dissolving are fundamental to questions of reef health and resiliency. A total of 52 surficial sediment samples were collected within a 1-km x 1-km area around Crocker Reef in the Florida Keys, USA, between 2013 and 2014. Samples 1-35 were collected in July 2013 and samples 36-52 were collected in July 2014. The samples were processed using conventional, published techniques (see process step section) to yield grain size and mineralogical data. The dataset, CRKR2013-2014_SEDIMENT_Images.zip contains photomicrograph images that correspond to each sediment sample. These images also include additional, survey-specific EXchangable Image File format (EXIF) header information.

Grain-Size and Data Analysis Results from Sediment Samples Collected at Crocker Reef, Florida, Between 2017 and 2019

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Sediment samples were collected from undisturbed sections of the seafloor around Crocker Reef, Florida. Crocker Reef is a barrier reef located in the northern portion of the Florida Reef Tract that has been classified by Kellogg and others (2015) as a senile or dead reef consisting of areas of sand and rubble with only scattered stony coral colonies. Samples were collected from November 2017 to April 2019 to help ground truth coincident instrumentation deployed during the same time interval, which was used to record various oceanic (currents, waves, turbidity, and pressure) time series datasets that would be used in subsequent analyses. All sediment samples were analyzed using a laser diffraction Coulter LS13 320 particle-size analyzer and sieves to measure the grain-size distribution of the sediments.

Grain-Size and Data Analysis Results from Sediment Samples Collected at Crocker Reef, Florida, Between 2017 and 2019

공공데이터포털

Sediment samples were collected from undisturbed sections of the seafloor around Crocker Reef, Florida. Crocker Reef is a barrier reef located in the northern portion of the Florida Reef Tract that has been classified by Kellogg and others (2015) as a senile or dead reef consisting of areas of sand and rubble with only scattered stony coral colonies. Samples were collected from November 2017 to April 2019 to help ground truth coincident instrumentation deployed during the same time interval, which was used to record various oceanic (currents, waves, turbidity, and pressure) time series datasets that would be used in subsequent analyses. All sediment samples were analyzed using a laser diffraction Coulter LS13 320 particle-size analyzer and sieves to measure the grain-size distribution of the sediments.

Sample texture analysis of sediment samples collected in the East and West Flower Garden regions, northwestern Gulf of Mexico outer shelf (ferltxtr)

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This sediment database contains location, description, and texture of samples taken during Cruise No. FERL01052 aboard the NOAA Ship Ferrel. These samples were taken on East and West Flower Garden Banks of the Flower Gardens Bank National Marine Sanctuary between May 28, 2002 and June 3, 2002. The information collected during this cruise is intended for a preliminary geologic interpretation of the surficial sediment distribution in order to determine sites for future sample collection. The interpretations presented in this Open File Report are subject to change with future data acquisition.

Sample texture analysis of sediment samples collected in the East and West Flower Garden regions, northwestern Gulf of Mexico outer shelf (ferltxtr)

공공데이터포털

This sediment database contains location, description, and texture of samples taken during Cruise No. FERL01052 aboard the NOAA Ship Ferrel. These samples were taken on East and West Flower Garden Banks of the Flower Gardens Bank National Marine Sanctuary between May 28, 2002 and June 3, 2002. The information collected during this cruise is intended for a preliminary geologic interpretation of the surficial sediment distribution in order to determine sites for future sample collection. The interpretations presented in this Open File Report are subject to change with future data acquisition.

GNSS locations of seabed images collected at Eastern Dry Rocks coral reef, Florida, 2021

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This text file (SQUID5_EDR_2021_Image_Locations.txt) provides the GNSS antenna location for underwater images collected at Eastern Dry Rocks coral reef, near Key West, Florida, in May 2021, using the SQUID5 Structure-from-Motion (SfM) system, a towed-surface vehicle with five downward-looking underwater cameras developed by the U.S. Geological Survey. The GNSS antenna location for the time of each image capture is presented with greater precision than is stored in the individual image's EXIF header due to decimal place limitations of the EXIF format.

GNSS locations of seabed images collected at Eastern Dry Rocks coral reef, Florida, 2021

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This text file (SQUID5_EDR_2021_Image_Locations.txt) provides the GNSS antenna location for underwater images collected at Eastern Dry Rocks coral reef, near Key West, Florida, in May 2021, using the SQUID5 Structure-from-Motion (SfM) system, a towed-surface vehicle with five downward-looking underwater cameras developed by the U.S. Geological Survey. The GNSS antenna location for the time of each image capture is presented with greater precision than is stored in the individual image's EXIF header due to decimal place limitations of the EXIF format.

Sediment Data from Cobscook Bay, Maine (LARSEN03 shapefile)

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The data in this layer were generated as part of an environmental impact statement evaluating the construction of a proposed 250,000 barrel per day oil refinery and marine terminal. Permits for this facility, which would serve the Eastport, Maine area, were requested by the Pittston Company of New York.