Great Lakes Regional Data Center (Cumulative Observations) 



Data type 1965 I%5 1%7 I'.tOS 



Water level readings 



(station months 2). . . . 53, 660 



Wave data (station 



months 3) 240 



Ice and snow: 



Visual (station 



months) 588 



Aerial (synoptic 



charts 4) 250 



Water temperature 



(station months) 1, 572 



Hydrographic data 



(field sheets) 670 



Shore based hydro- 

 meteorological data 5 

 (station months) 122 134 146 158 170 



Shipboard hydro- 

 meteorological data 5 

 (station months) 36 42 48 54 60 



Water characteristics ^ 



(samples) 263, 000 276, 000 289, 000 302, 000 315, 000 



1 Estimated. 



2 Filed ill hourly readings. (Total information bits=statioii months times 24 hours times 30 days.) 

 ' Continuous records. 



* Includes thickness, coverage and topographic features for all 5 lakes. 



5 Includes air and water temperature, wind diiection and velocity, current direction and velocity from 

 multilevel sensors. 

 « Includes multicomponent chemical analyses and physical properties. 



By receiving data from a variety of sources the Fleet Numerical Weather 

 Center (FNWC) is able to provide forecasts and analyses for fleet use, and 

 some of this information is useful to the fishing industry and for general 

 meteorological forecasting. The computer complex at Monterey, Calif., 

 handles over 25 million data bits a day to provide services through the 

 Navy's environmental data network, and the FNWC serv^es as a center for 

 an environmental forecasting program which covers the Northern Hemi- 

 sphere. In addition, FNWC is responsible for the majority of the Navy's 

 numerical environmental prediction program and as such plays a key role 

 in developing prediction products for the fleet. 



In the Department of the Interior, environmental data are collected and 

 utilized by a number of bureaus. The Geological Surv^ey itself compiles data 

 on stream discharge measurements, chemical and related water quality data. 

 The STORET system created by the Federal Water Pollution Control Ad- 

 ministration maintains hydrological, meteorological, physical, chemical, bio- 

 logical and other data related to water quality and water quality manage- 

 ment. Operating through its 16 regional laboratories and its statistics branch 

 in Washington, D.C., the Bureau of Commercial Fisheries collects and pub- 

 lishes data on physical, biological, chemical, geological, and acoustical 

 oceanography, as well as commercial fish catches. 



The Department of Transportation through the oceanographic work of 

 the U.S. Coast Guard provides 34 percent of the U.S. station data processed 

 by NODC during fiscal year 1969. 



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