SERC Data Table of Contents

meta key # dock003
dataset or series of data USGS Dock Monitoring station, daily data, 1980 - 1990
keywords conductivity, dissolved oxygen, pH, temperature
originator Gallegos, C.; Duls, J.; Kobayashi, N.
file format Excel 2000
platform Windows
study site locale Rhode River, Edgewater, Anne Arundel County, MD, USA
beginning date 19801001
ongoing? no
ending date 199009
meas. freq. Daily
site size point
# of stations 1
west longitude -76.54166
east longitude -76.54166
north latitude 38.88611
south latitude 38.88611
parameters year, julian day, time, Maximum conductivity (micromhos/cm at 25 deg C), Minimum conductivity, Average conductivity, Maximum dissolved oxygen (mg/L), Minimum dissolved oxygen, Average dissolved oxygen, Maximum pH, Minimum pH, Average pH, Maximum temperature (deg C), Minimum temperature, Average temperature
current sharing status available by download
current advertising status SERC public site
abstract These data were produced by a U.S. Geological Survey water monitor from 1980 until 1990. This instrument was housed in the dock shed at the end of SERC's wharf on the Rhode River. The USGS monitor recorded hourly observations of conductivity, (micromhos), dissolved oxygen (mg/liter), pH, and temperature (deg C). Water was pumped continuously from the river into a tub in which the four sensors were suspended. These hourly observations were punched onto a paper tape which was in turn transcribed by a Stevens Translator in the SERC computer room. These tapes now reside in archival storage. Daily maximums, minimums, and averages were calculated for each variable and were compiled into this database. Data from 1980 - 1983 were entered by hand from datasheets.
additional documentation / reference article  

Last Updated on 5/22/01
By Michelle Berger