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Hydrologic Modelling
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Hydrology is the applied science concerned with the occurrence, distribution, and circulation of the waters of the earth.

Less than three percent of the earth's water resources is fresh and little more than one-hundredth of one percent of the earth's water is in lakes, rivers, the soil and the atmosphere.

Water evaporates from the earth's surface and is transpired from plants, it falls as rain or snow, it percolates into the ground, it travels through rivers and lakes and eventually returns to the ocean.

This continuous recycling process, which is so vital to life on earth, is called the hydrological cycle and is illustrated in the above figure.

The Hydrologic Modelling Section has a number of products available via the web or in print:

  • Near Real-Time Streamflow and Climate Information

    • From 39 remote sites in the province every day streamflow and climate information is automatically collected via satellite transmission and relayed to the Department. There, it is processed for several applications and one of the products created is 30 day graphs depicting the conditions at each station. These graphs are updated and placed on the web page daily at around 9:00am.

  • Flood Information

    • Images and information on the occurrence of flooding in the Province.

  • Hydrology and Climate of Newfoundland

    • Physiographic, hydrologic and climate characteristics of the Province based on data collected by the Division.

  • Regional Flood Frequency Analysis for the Island of Newfoundland

This package consists of a 122 page main report, a 58 page "Users' Guide", and a spreadsheet in Lotus and Excel format.  The objective of the analysis was to derive a set of equations for predicting return period flood flows on ungauged streams.  The main report describes floods in Newfoundland, provides estimates flood flows from gauged streams, and documents the derivation of a set of equations which can be used to predict flood flows on ungauged streams.  The "Users' Guide" provides examples and the spreadsheet automates the procedure. 

This package consists of a 106 page report and 400+ pages of appendices.  The objectives of this study were to characterize the hydrology of Labrador and to develop procedures for transferring hydrological information from large gauged watersheds to small ungauged watersheds.  The hydrological characteristics of large gauged watersheds in Labrador were obtained by analysing the available physiographic, climatic and streamflow data.   Flood characteristics were transferred to smaller watersheds by integrating into the analysis, flood data from hydrologically similar watersheds in Quebec and Central Newfoundland.  The appendices consist of all of the annual hydrographs of daily streamflow in Labrador and other plots of hydrological and climatic variables.  The calculation of flood flows were automated in a spreadsheet. 

  • Water Resources Atlas Of Newfoundland (March 1992)

The "WATER RESOURCES ATLAS OF NEWFOUNDLAND" was released for sale in March 1992.  A comprehensive description of the water resources in the province now exists in a single source.

The atlas describes the physiography, geology, climatology, hydrology, water quality, groundwater, and water uses of the province.  The hydrology section gives information on: drainage basins, river gauges, major lakes, reservoirs, river ice, flood zones, as well as maximum, minimum, mean, monthly and annual streamflows.

The atlas is the result of several years of data collection and analysis by dedicated professionals.  This hard cover reference has over 80 glossy pages that measure 14" x 18".  This provides for a high level of detail on each of the 32 high quality colour maps.  The maps are described and supported by accompanying text, 40 illustrations, and 30 colour photographs.  References and a glossary are included.

The atlas is intended to be a source of general information on water resources in the province, as well as a reference in the preliminary planning and design stages of water resource projects.

The cost of this useful and informative publication is just $65 (postage included).  To order your "WATER RESOURCES ATLAS OF NEWFOUNDLAND" please Contact Us.

                              

For more information about Hydrologic Modelling Section please Contact Us

 

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