2022-020-FA (CMHRP activity #8956)

Field Activity 2022-020-FA

Identifier

2022-020-FA

Purpose

Measure greenhouse gas (methane and CO2) distribution in sediment and water and fluxes across sea-air interface

Location

Chesapeake Bay

Summary

Conduct daily surveys at 5 sites from the freshwater to saline portion of the bay. Daily surveys include chirp sonar, sediment coring and water column profiling

Info derived

surface water gas concentration subsurface water gas concentration sediment gas distribution

Projects

Estuarine Processes, Hazards, and Ecosystems ?mid-Atlantic

Platform

Rachel Carson (Univ. Maryland)

Length: 81-feet; Beam: 18 ft (5.5 m).

Itinerary

Start	Solomons MD, USA	2022-07-22
End	Solomons MD, USA	2022-08-01
Days in the field	5

Bounds

West	-77.55
East	-75.58
North	39.55
South	36.86

Personnel

Organization

University of Maryland Center for Environmental Science(UMECS)

P.O. Box 775

Cambridge, MD21613

410-228-9250

Organization

USGS, Woods Hole Coastal and Marine Science Center(WHCMSC)

384 Woods Hole Road

Quissett Campus

Woods Hole, MA02543-1598

(508) 548-8700

Principal investigators

John Pohlman

Crew members

Michael Casso	Scientist, Staff
David S Foster	Scientist, Staff
Wayne E Baldwin	Scientist, Staff

Information specialist(s)

Michael Casso

Specialist, Information

Affiliate principal

Laura Lapham, University of Maryland Center for Environmental Science

Data types and categories

Data category:	Seismics, Sampling, Environmental Data, Geochemical
Data type:	Sub Bottom Profiler, Chemistry, CO2, Methane, CTD, Surveys (geochemical)

Equipment used

Equipment	Data types	Datasets
Edgetech 3400	Sub Bottom Profiler	1
Rhizons	Chemistry	(no data reported)
Pore water sampling	Chemistry	(no data reported)
Niskin bottle	Chemistry	(no data reported)
Cavity Ring-Down Spectroscopy (CRDS)	CO2, Methane, Experiments (geochemical), Surveys (geochemical), Chemistry	(no data reported)
SBE 9 CTD	CTD	(no data reported)
USGS-GAS	Surveys (geochemical), Experiments (geochemical), Chemistry, Geochemical Monitoring, CO2, Methane	(no data reported)

Datasets

Datasets produced in this activity

Dataset name	Equipment	Description	Dataset contact
2022-020-FA_ET3400	Edgetech 3400	Chirp seismic reflection and navigation data collected in Chesapeake Bay during USGS Field Activity 2022-020-FA. Includes profile images and SEG-Y data, trackline and shotpoint navigation.	David S Foster