Dataset: Long-term seawater temperature data from USVI
Deployment: Edmunds_VINP

Temperature data for St. John USVI.

Principal Investigator:

Peter J. Edmunds (California State University Northridge, CSUN)

Contact:

Thomas Kelley (National Park Service, NPS)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

LTREB Long-term coral reef community dynamics in St. John, USVI: 1987-2019 (St. John LTREB)

Current State:

Final no updates expected

Version:

Data URL:

https://www.bco-dmo.org/dataset-deployment/736818/data

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Description

These data have been utilized for several publications analyzing different aspects of seawater temperature, including Edmunds: Royal Society 2006, Green et al: Journal of Experimental Marine Biology and Ecology 2010, Green and Edmunds: Journal of Experimental Marine Biology and Ecology 2011, and Edmunds: Marine Ecology Project Series 2013. Temperatures were averaged by day and month and used to calculate annual mean and range using monthly mean temperatures. Daily temperatures were used to categorize days as hot (> 29.3°C) or cold (≤ 26.0°C), with hot days exceeding the coral bleaching threshold for St. John (http://coralreefwatch.noaa.gov/satellite), and ‘cold days’ less than or equal to the lower 12th percentile of daily seawater temperatures in Great Lameshur Bay between 1989-2005 (Edmunds 2006).This dataset cotains data annually updated data ongoing since July 1999.

Methods & Sampling

Dataset acquisition description

Measurement of Seawater Temperature

Seawater temperature was recorded every 15-30 min using a Ryan Industries thermistor (± 0.3°C accuracy) at 11-m depth from January 1989 to April 1997, and from November 1997 to August 1999; an Optic Stowaway logger (± 0.2°C accuracy) at 9-m depth from May 1997 to October 1997, and from August 1999 to August 2001; and a Hobo Aquapro logger (± 0.2°C accuracy) at 9-m depth from August 2001 to August 2011. Temperatures were averaged by day and month and used to calculate annual mean and range using monthly mean temperatures. Daily temperatures were used to categorize days as hot (> 29.3°C) or cold (≤ 26.0°C), with hot days exceeding the coral bleaching threshold for St. John (http://coralreefwatch.noaa.gov/satellite), and ‘cold days’ less than or equal to the lower 12th percentile of daily seawater temperatures in Great Lameshur Bay between 1989-2005 (Edmunds 2006). This dataset includes data starting in July 1999.

Data Processing Description

Dataset Processing Description

BCO-DMO Processing Notes:

-Reformatted column names to comply with BCO-DMO standards.
-Added latitude and longitude

More information about this dataset deployment

Funding

Award Number	Funding Source
DEB-0841441	NSF Division of Environmental Biology

Instruments

Temperature Logger

Supplied Name: Temperature logger

Supplied Description:

Measured seawater temperature

Instrument Type

Generic Name: Temperature Logger

Generic Description:

Records temperature data over a period of time.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
Date	Data recorded in situ by a variety of sensors; most recently Hobo Temp logges with a resoluton of 0.2 deg C; YYYY/MM/DD	unitless	date
Owner	Origin of data; NPS Data from VINP; PJE Data = from Peter J. Edmunds	unitless	investigator
Site	Location where data collected; Yawzi NPS = NPS site at 11 m; Yawzi 9 m = off Yawzi Point; Tektite 14 m = deeper site on western side of the bay (data from this site used when looger at Yawzi failed)	unitless	site
lat	Latitude	decimal degrees	lat
lon	Longitude	decimal degrees	lon
Temperature	Mean daily temperature. Data averaged within a day with records collected approximately every 15 minutes.	Celsius	temperature

Database

Contribute Data

Dataset: Long-term seawater temperature data from USVI
Deployment: Edmunds_VINP

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Long-term seawater temperature data from USVIDeployment: Edmunds_VINP

Dataset acquisition description

Dataset Processing Description

Dataset: Long-term seawater temperature data from USVI
Deployment: Edmunds_VINP