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Global Attributes:	cdm_data_type: Point featureType: point title: FRF Wave Shape 6.1, Suspended sediment concentration data summary: Suspended sediment concentrations data collected at the USACE Coastal Hydraulics Laboratory (CHL), Field Research Facility (FRF) in Duck, NC. These data were collected in the Atlantic Ocean at numerous stations in the surf zone in Nov 2016, Jan 2017, Apr 2017, Sep 2017, and Oct 2017. Data were collected with a pump sampler with intake port mounted between 0.1 and 0.5 meters above the seabed on the Coastal Research Amphibious Buggy (CRAB) along with a suite acoustic and optical sensors. The CRAB occupied numerous stations near the break point in the surf zone on each field day. Stations were typically occupied for 30 minutes. Pump samples were collected aboard the CRAB. They were first passed through a 63 micron sieve to collect the sand fraction. The suspension that passed through the sieve was then subsampled and an aliquot was collected on a 934 AH preweighed filter to quantify the fine fraction. Both the fine and sand fraction was dried then weighed to quantify the fine and sand SSC. After being weighed, the samples were muffled for 4 hours at 550C to determine the mass LOI. A single .nc file was created for the cumulative data set. history: USACE/FRF source: In situ observations from Waveshape_SSCsamplingddmmyy.mat sourceUrl: (local files) standard_name_vocabulary: CFv25 Metadata_Conventions: Unidata Dataset Discovery v1.0, CF-1.6 metadata_link: N/A Conventions: CF-1.6 creator_name: USACE/CHL/COAB creator_url: http://www.frf.usace.army.mil/ creator_email: frfwebmaster@usace.army.mil license: These data may be redistributed and used without restriction. Data are intended for scholarly use by the research community, with the express agreement that users will properly acknowledge the USACE Field Research Facility and the supporting investigator(s). Use or reproduction of these data for commercial purposes is prohibited without prior written permission. keywords_vocabulary: Global Change Master Directory (GCMD) Earth Science Keywords; CF Standard Name Table (v23, 23 March 2013) keywords: Oceans > Suspended sediment > SSC > LOI > Physical sample, DOD > DOD/USARMY/USACE/CHL/FRF > Field Research Facility, Coastal And Hydraulics Laboratory, U. S. Army Corps Of Engineers, U.S. Army, U. S. Department Of Defense processing: post process organization: U.S. Army Corps of Engineers (USACE), Engineering Research and Development Center (ERDC), Coastal Hydraulics Laboratory (CHL), Observation and Analysis Branch (COAB) publisher_url: http://frf.usace.army.mil infoUrl: http://frf.usace.army.mil publisher_email: frfwebmaster@usace.army.mil publisher_name: USACE/CHL/COAB format_version: v1.0 institution: USACE/CHL/COAB contact: USACE/CHL/COAB contact_info: USACE/CHL/COAB contact_role: Owner contributor_name: USACE/CHL/COAB contributor_role: USACE/CHL/COAB naming_authority: FRF origin: USACE/CHL/COAB date_created: 2018-08-09 date_issued: 2018-08-09 project: USACE/FRF observations id: FRF-ocean_WaveShape_ABS acknowledgement: Data are provided by the U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, Duck, NC. processing_level: L1 geospatial_vertical_units: m geospatial_vertical_resolution: 0.0 geospatial_vertical_min: -6.0 geospatial_vertical_max: 1.0 geospatial_vertical_origin: NAVD88 geospatial_vertical_positive: up geospatial_lat_units: degrees_north geospatial_lon_units: degrees_east nomDepth_units: m nomDepth: 1.0 sensorHeightAboveBottom: 0.4 hoseVolume: 2.85 hoseVolume_units: liters hoseVolume_note: Hose volume and pumping rate can be used to derive time offset between bottle sample collection and timing of sample intake. This offset should be acounted for when comparing to sensor data. comment: Pump intake height above bottom varied from about 0.1 meters to 0.5 meters as CRAB sank into the bottom over time. geospatial_lat_min: 36.17886 geospatial_lat_max: 36.1877 geospatial_lon_min: -75.75068 geospatial_lon_max: -75.74679259338221 time_coverage_start: 18-Nov-2016 16:45:15 time_coverage_end: 26-Oct-2017 16:05:40 deployment_start: 18-Nov-2016 16:45:15 deployment_end: 26-Oct-2017 16:05:40 Unlimited_Dimension: time

Variables:	time: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: seconds since 1970-01-01 00:00:00 standard_name: time long_name: UTC Sample Time calendar: gregorian short_name: time _ChunkSizes: 1000
	lat: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: degrees_north standard_name: latitude long_name: Latitude short_name: lat _ChunkSizes: 266
	lon: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: degrees_east standard_name: longitude long_name: Longitude short_name: lon _ChunkSizes: 266
	hoseVol: 64 bit Real hoseVol _FillValue: -999.99 units: liters long_name: Volume of pump sample hose short_name: hoseVol
	station_name: Array of Strings [station_name_length = 0..56] station_name_length: units: long_name: station name short_name: station_name _ChunkSizes: 57, 266 DODS: strlen: 266 dimName: time
	startTime: Array of 64 bit Reals [time = 0..265] time: short_name: startTime long_name: Start time of pump sample collection note: This is the start of the bottle sample collection. To compare to sensor data, the time it took the sample to travel thru the hose needs to be accounted for (startTime - hoseVolume/pumprate). _FillValue: -999.99 units: seconds since 1970-01-01 00:00:00 _ChunkSizes: 266
	stopTime: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: seconds since 1970-01-01 00:00:00 short_name: stopTime long_name: Stop time of pump sample collection note: This is the end of the bottle sample collection. To compare to sensor data, the time it took the sample to travel thru the hose needs to be accounted for (stopTime - hoseVolume/pumprate). _ChunkSizes: 266
	fines_SSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: finesSSC long_name: fine sediment suspended solids concentration note: Determined by passing full sample thru 63 micron sieve, then subsampling and filtering known volume of subsample onto 934AH filter and drying at 90C for 24 hrs. _ChunkSizes: 266
	sand_SSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: sandSSC long_name: sand sized sediment suspended solids concentration note: Determined by passing full sample thru 63 micron sieve and drying at 90C for 24 hrs. _ChunkSizes: 266
	fines_inorgSSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: finesInorgSSC long_name: fine sediment inorganic suspended solids concentration note: Concentration left on SSC filter after muffling at 550 C for 4 hours. _ChunkSizes: 266
	sand_inorgSSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: sandInorgSSC long_name: sand sized inorganic sediment suspended solids concentration note: Concentration left of sieved sand sample after muffling at 550 C for 4 hours. _ChunkSizes: 266
	fines_orgSSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: finesOrgSSC long_name: fine sediment organic suspended solids concentration note: Concentration lost on ignition of SSC filter from muffling at 550 C for 4 hours. _ChunkSizes: 266
	sand_orgSSC: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: g/l short_name: sandOrgSSC long_name: sand sized organic sediment suspended solids concentration note: Concentration lost on ignition of sieved sand sample after muffling at 550 C for 4 hours. _ChunkSizes: 266
	fines_orgFrac: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: short_name: finesOrgFrac long_name: fine sediment organic fraction note: Ratio of mass loss on ignition to total sample mass. _ChunkSizes: 266
	sand_orgFrac: Array of 64 bit Reals [time = 0..265] time: _FillValue: -999.99 units: short_name: sandOrgFrac long_name: sand sized organic fraction note: Ratio of mass loss on ignition to total sample mass. _ChunkSizes: 266

For questions or comments about this dataset, contact the administrator of this server [Spicer Bak] at: Spicer.Bak@usace.army.mil

For questions or comments about the OPeNDAP service bundled with the TDS, email THREDDS support at: support-thredds@unidata.ucar.edu

DDS:

Dataset {
    Float64 time[time = 266];
    Float64 lat[time = 266];
    Float64 lon[time = 266];
    Float64 hoseVol;
    String station_name[station_name_length = 57];
    Float64 startTime[time = 266];
    Float64 stopTime[time = 266];
    Float64 fines_SSC[time = 266];
    Float64 sand_SSC[time = 266];
    Float64 fines_inorgSSC[time = 266];
    Float64 sand_inorgSSC[time = 266];
    Float64 fines_orgSSC[time = 266];
    Float64 sand_orgSSC[time = 266];
    Float64 fines_orgFrac[time = 266];
    Float64 sand_orgFrac[time = 266];
} frf/projects/WaveShape/SuspendedSediment/FRF-ocean_WaveShape_SSC.nc;

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