Document Type

Data

Department/Program

Virginia Institute of Marine Science

Publication Date

3-2-2012

Spatial Information

United States||Upper Chesapeake Bay, MD; South of Choptank River||380 38.33' N, 0760 28.982'W; 380 33.530' N, 0760 22.483'W; 380 22.136' N, 0760 22.049'W; 380 23.097' N, 0760 18.38'W

Abstract

While the project is a collaborative effort involving several researchers from the Virginia Institute of Marine Science (VIMS), the University of Maryland Center for Environmental Science (UMCES) and the Woods Hole Oceanographic Institution (WHOI), the Data archive here is primarily from VIMS owned instrumentation deployed as part of the project. A series of instruments were deployed in three transects in Upper Chesapeake Bay, South of the Choptank River from March to May 2012. This Dataset was collected with autonomously deployed Acoustic Doppler Current Profilers (ADCP), Acoustic Doppler Velicometers (ADV), and Conductivity and Temperature Sensors (CT).

Description

With the aim of detecting the along-channel density gradient, along-channel variability in lateral circulation and stratification, and helping to resolve the local spatial variability in wind forcing, two sparser cross-estuary arrays were placed a tidal excursion landward and seaward of the primary dense array. These were identified as the northern (N) array and the southern (S) array. See "WINDSTATIONSCHEMATICSversion9.0.pdf" for description of each station within the all three transects. The primary cross-estuary instrument array, the main (M) array, consisted of stations equipped with bottom-mounted ADCPs equipped with temperature-salinity (T-S) recorders. Stations were marked with surface buoys equipped with meteorological sensors and surface temperature-salinity recorders. Additional T/S sensors were be placed in the middle of the water column on the inner 3 moorings to monitor pycnocline variability. At the instrumented tower station, a vertical array of 6 ADVs and 6 temperature-salinity recorders was deployed to provide direct measurements of velocity, momentum flux, turbulent dissipation, water column stability and surface wave statistics. The tower was an open-lattice structure designed for rigidity and to minimize flow disturbance. Taut cables from a 4-anchor array were attached to a winch platform near the top of the tower through sheaves located at approximately 60% of the tower height above the bottom. The ADVs were cantilevered away from tower perpendicular to the along-channel flow to minimize the potential for flow disturbance. Turbulence measurements collected at the tower were complemented with bottom tripod mounted ADVs at five additional locations to provide detailed near-bed turbulence measurements at five locations in the cross section. A sonic anemometer package was mounted to a platform on top of the tower with its measurement volume positioned to avoid any structural turbulent wakes. The apparatus was mounted on the same tower set to sample all three axes of wind velocity at 10 Hz for 30 min every hour. Temperature and relative humidity sensors were mounted just below the sonic anemometer. The topmost ADV was mounted approximately 1 m below MLW, and was set to sample both velocity and pressure at 4 Hz for approximately 9 min every 0.5 hr for estimation of subsurface turbulent momentum flux, surface wave characteristics, and tidal height. All 11 of the other surface buoys were equipped with standard sensors for measuring wind velocity and temperature; the sensors were mounted 3-5 m above water, depending on the size of the buoy.|Raw and processed Data from each VIMS owned instrument are zipped in a folder, or series of folders, identified by the type and serial number of the instrument. See DEPLOYMENT1INSTRUMENTLIST.xlsx and "Wind Station Array V6 Modified with VIMS deployed serial numbers.pdf" for a detailed list of all instruments deployed. "VIMS deployment logbook.pdf" and "VIMS retrieval logbook.pdf" provide detailed deployment and retrieval information for each VIMS instrument.|ADV Burst Data is too large for inclusion here so the Data archived here includes only burst averages and statistics. Original Burst Data is available upon request. All times are Eastern Standard Time (EST).

DOI

http://doi.org/10.21220/V5WC7W

Keywords

acoustic backscatter, conductivity temperature and depth sensor, CTD, Acoustic Doppler Current Profiler, ADCP

Creative Commons License

Creative Commons Attribution 3.0 License
This work is licensed under a Creative Commons Attribution 3.0 License.

Series

Chesapeake Bay Mainstem, Virginia and Maryland

Funding

NSF grant OCE-1061564 (VIMS),NSF grant OCE-1061609 (UMCES),NSF grant OCE-1061562/1339032 (WHOI)

DEPLOYMENT1INSTRUMENTLIST (1).xlsx (13 kB)
Instrument List

HOBO TC plots.tgz (514 kB)
HOBO TV

Station M1 data download.pdf (93 kB)
Station M1 download sheet

Station M1 HOBO TC sn 10075270 data.tgz (398 kB)
Station M1 HOBO TC sn 10075270 data

Station M1 Intruments Deployment setup.pdf (216 kB)
Station M1 Intruments Deployment setup

Station M1 RDI ADCP 1200 kHz sn 5783 data.tgz (5863 kB)
Station M1 RDI ADCP 1200 kHz sn 5783 data

Station M1 Sontek ADV SN B336 G494 Burst average data.tgz (1229 kB)
Station M1 Sontek ADV SN B336 G494 Burst average data

Station M3 HOBO CT sn 10075272.tgz (1210 kB)
Station M3 HOBO CT sn 10075272

Station M3 Intruments Deployment setup and data download.pdf (88 kB)
Station M3 Intruments Deployment setup and data download

Station M3 Sontek ADV.tgz (967 kB)
Station M3 Sontek ADV

Station M4 deployment data download.pdf (56 kB)
Station M4 deployment data download

Station M4 HOBO CT sn 10075274.tgz (689 kB)
Station M4 HOBO CT sn 10075274

Station M5 deployment data retrival.pdf (111 kB)
Station M5 deployment data retrival

Station M5 HOBO CT sn 10075265.tgz (773 kB)
Station M5 HOBO CT sn 10075265

Station M5 YSI CTD 6600 sn 03k0492.tgz (1105 kB)
Station M5 YSI CTD 6600 sn 03k0492

Station M7 Sontek ADV.tgz (687 kB)
Station M7 Sontek ADV

Station MB data download.pdf (108 kB)
Station MB data download

Station MB HOBO CT sn 10075273.tgz (98 kB)
Station MB HOBO CT sn 10075273

Station MB Intruments Deployment setup.pdf (208 kB)
Station MB Intruments Deployment setup

Station MB RDI ADCP 600kHz sn 7260.tgz (8167 kB)
Station MB RDI ADCP 600kHz sn 7260

Station MB Sontek ADV B337 G447.tgz (976 kB)
Station MB Sontek ADV B337 G447

Station S2 HOBO CT sn 10075264.tgz (365 kB)
Station S2 HOBO CT sn 10075264

Station S2 Intruments Deployment setup and data download.pdf (98 kB)
Station S2 Intruments Deployment setup and data download

Station Tower Nortek ADVs depolyment and data download.pdf (594 kB)
Station Tower Nortek ADVs depolyment and data download

Station Tower Vector setup email from Malcolm Scully.pdf (86 kB)
Station Tower Vector setup email from Malcolm Scully

VIMS deployment logbook.pdf (949 kB)
VIMS deployment logbook

VIMS retrieval logbook.pdf (182 kB)
VIMS retrieval logbook

Wind Station Array V6 Modified with VIMS deployed serial numbers.pdf (1266 kB)
Wind Station Array V6 Modified with VIMS deployed serial numbers

WINDSTATIONSCHEMATICSversion9.0.pdf (7116 kB)
WINDSTATIONSCHEMATICSversion9.0