Chemical and Physical Characteristics of the Great Lakes (1965-1978)Entry ID: GLERL0002
Abstract: The yearly investigations for the years 1965 to 1974 were formulated and
directed by Dr. Arthur P. Pinsak (retired). The 1975 cruises were planned and
directed by Gerald L. Bell and Dr. Richard L. Chambers. Through 1970 the
collections were made by the U.S. Lake Survey Center, U.S. Army Corps of
Engineers. For late 1970 the U.S. Lake Survey became part of the U.S.
Department of Commerce, NOAA. ... In 1974 this group moved from the Lake Survey
Center to the Great Lakes Environmental Research Laboratory (GLERL), NOAA.
Although the parent organizations changed, the research group remained the same
thus providing continuity for the investigations from 1965 through 1975.
The profiles of water transparency and temperature were recorded at each
station using a Deep-water transparency meter and a bathythermograph. These
data are not included in the data reports but are on computer printouts and in
a disk file. The individual water sample temperatures were recorded using
reversing thermometers; these values are included in the Data Reports.
The meteorological observations were made automatically every 6 minutes. The
meteorological parameters were winds, pressure, air and water temperature,
solar radiation, relative humidity and precipitation. The records of these
data are incomplete and are on computer printouts and magnetic tapes.
Sampled parameters include surface temperature, surface humidity, surface
winds, surface pressure, water temperature, light transmission, pH,
phenophthalein alkalinity, conductivity, nitrate, phosphate, chloride,
dissolved oxygen, silicate, magnesium, sodium, potassium, trace elements,
suspended solids, coliform bacteria, sediment, and oxygen demand. The sampling
domain includes the five Great Lakes (Lake Superior, Lake Michigan, Lake
Huron, Lake Erie, Lake Ontario), Lake St. Clair, and three connecting rivers
(St. Marys River, St. Clair River, Detroit River)
(Click for Interactive Map)
Start Date: 1965-01-01Stop Date: 1978-12-31
ISO Topic Category
Role: DIF AUTHOR
Phone: +1 (828) 271-4101
Email: christina.lief at noaa.gov
Program Manager Global Observing Systems Information Center (GOSIC) NOAA/NESDIS/NCDC - Room 459
City: Asheville, NC
Province or State: NC
Postal Code: 28801
Creation and Review Dates
DIF Creation Date: 2003-06-04
Last DIF Revision Date: 2009-04-20