Coordinating Committee Products and Datasets

Hydraulic Subcommittee

Methodologies for conducting hydraulic discharge methods in the Great Lakes Connecting Channels

Database of binational discharge measurements

Monthly flow records for the Connecting Channels

               St. Marys River

               St. Clair River

               Detroit River

               Niagara River

               St. Lawrence River

Methodologies for coordinating the computation of streamflow

Diversions into and out of the Great Lakes

Conveyance change monitoring reports

Hydrology Subcommittee

Coordinated:

LakeSuperior_BeginningOfMonthWaterLevels_1900to2017

LakeMichiganHuron_BeginningOfMonthWaterLevels_1900to2017

LakeStClair_BeginningOfMonthWaterLevels_1900to2017

LakeErie_BeginningOfQuarterMonthWaterLevels_1900to2017

LakeOntario_BeginningOfQuarterMonthWaterLevels_1900to2017

LakeSuperior_MonthlyMeanWaterLevels_1918to2017

LakeMichiganHuron_MonthlyMeanWaterLevels_1918to2017

LakeStClair_MonthlyMeanWaterLevels_1918to2017

LakeErie_MonthlyMeanWaterLevels_1918to2017

LakeOntario_MonthlyMeanWaterLevels_1918to2017

historical precipitation (1900-2014)

residual net basin supplies

Vertical Control – Water Levels Subcommittee

Coordinated:

International Great Lakes Datum (1985)

International Upper Great Lakes Datum Update Plan

Vertical reference frame

Elevation and other information on bench marks

Vertical velocity models

Hydraulic corrector models

Gravity models

GPS campaigns used for crustal movement monitoring, and both historic and present datum transformation methodologies

Water level data collection methodologies

Low water datum values and determination methods

Low water datum step planes for the interconnecting channels and the St. Lawrence River

Water level gauging network adequacy assessments

Data calculation methods including individual station data averaging and also lake-wide average calculation methods

Coordinated Great Lakes Regulation and Routing Model Update Subcommittee

               Coordinated Great Lakes Regulation and Routing Model

               Coordinated Great Lakes Regulation and Routing Model Update Plan

Last revised:  2017-09-27