Recent Fieldwork - January-March 2020

Release Date:

In the first quarter of 2020, USGS scientists surveyed mangrove coral habitats in Florida, set up instruments in American Samoa to study coral reef damage, collected data from the Gulf of Mexico, San Francisco and Stanford, California, and Washington state.

This article is part of the January-March 2020 issue of the Sound Waves newsletter.

A global map shows locations where the USGS completed field work in January and February of 2020.

Locations where USGS Coastal and Marine Hazards and Resources Program (CMHRP) scientists conducted fieldwork in January and February 2020.

Lower Florida Keys - Marathon to Marquesas: Surveyed prioritized mangrove habitats for the presence of corals growing on or under prop roots (searching for coral refugia), January.

Ocean Beach, San Francisco, CA: Collected base GPS and beach elevation data and Structure-from-Motion digital photos, to monitor changes in beach sand volume and distribution, January 8.

Gulf of Mexico: Collected discrete chemistry samples from the offshore Ocean Carbon System (OCS) V3, January 13-17.

Middle Tampa Bay, Florida: Collected discrete chemistry samples, including pH, DIC and TA, from Ocean Carbon System (OCS) V2, January 14.

Ofu, American Samoa: Investigated geophysical controls on algal outbreaks over coral reefs in the National Park of American Samoa, installing a mooring with instruments that collect physical oceanographic data like current speed, conductivity, resistivity, and water temperature, January 27-February 13. For more information, see USGS News story

Gulf of Mexico: Collected biological oxygen demand (BOD) bottles and spectrophotometric pH, with the redeployment of the C12 Comps Buoy, January 28-30.

Grand Bay National Estuarine Research Reserve, Mississippi and Alabama: Retrieved and redeployed sediment plates and sensors, and collected elevation and positional data for marsh features, February 3-14.

Bellingham Bay, Washington: Collected current, wave, and water-quality parameter data from mooring, February 2-6.

Ocean Beach, San Francisco, CA: Collected base GPS and beach elevation data and Structure-from-Motion digital photos, to monitor changes in beach sand volume and distribution, February 6.

Gulf of Mexico: Retrieved data from sediment trap and CTD (instrument that collects ocean water conductivity, temperature, and depth) logger and probe, in order to study foraminifera flux, February 7-10.

Bellingham Bay, Washington: Collected 22 surface grab samples, 38 box cores, and 22 vibracores in order to examine nearshore sedimentation patterns, sedimentation rates, and sediment composition; these studies will improve understanding of sediment transport, fate and importance to ecological functions, February 9-15.

Jasper Ridge Biological Reserve, Stanford, California: Collected cores of sediments retained behind the Searsville Lake Dam and in the marsh near the Upper Lake for earthquake and ecological studies, February 18-21.

Tampa Bay, Florida: Reinstalled modem in Ocean Carbon System (OCS) V2 and potentially collect seawater samples, February 18-20.

Tampa Bay, Florida: Redeployed the Ocean Carbon System (OCS) V3 CO2-Pro, prior to March 20.