|Title||Description of watershed outline and water depth survey datasets from Geraldine Lake - Iqaluit, Nunavut / Description des données de profondeur d'eau et de délimitation du bassin versant du lac Geraldine -
|Licence||Please note the adoption of the Open Government Licence - Canada
supersedes any previous licences.|
|Author||Budkewitsch, P; Prévost, C; Pavlic, G; Pregitzer, M|
|Source||Geological Survey of Canada, Open File 6750, 2011, 43 pages, https://doi.org/10.4095/288672 Open Access|
|Publisher||Natural Resources Canada|
|Related||This publication is related to Watershed mapping and
monitoring for northern community impact assessment - Iqaluit, Nunavut |
|NTS||25N/09; 25N/10; 25N/15; 25N/16|
|Area||Iqaluit; Geraldine Lake|
|Lat/Long WENS||-69.0000 -68.0000 64.0000 63.5000|
|Subjects||hydrogeology; geophysics; Nature and Environment; watersheds; lake water depths; lake water; groundwater; groundwater resources; groundwater surveys; groundwater regimes; groundwater levels; surface
waters; remote sensing; satellite imagery; bathymetry|
|Illustrations||location maps; photographs; satellite images; digital elevation models|
|Program||Climate Change Geoscience, Building Resilience to Climate Change in Canadian Communities|
|Released||2011 07 08|
|Abstract||A watershed outline map, a bathymetric map, and water related statistics of Geraldine Lake, the Iqaluit water supply reservoir where produced following field work in Iqaluit during the summer of 2008.
One objective of this initiative was to develop the technology for Nunavut scientists and to transfer the methodologies in communities where drinking water supply is at risk due to a declining supply|
and a changing climate. With support from
Indian and Northern Affairs Canada (INAC), a small team of scientists from the Canada Centre for Remote Sensing (CCRS) are involved in a project to help characterize the water supply of Nunavut communities. This was a complex task involving the
delineation of watersheds and estimation of the water volume of the supply lake for the community. To estimate this water volume, a bathymetric map was produced based on field surveys using a depth sounder equipped with a GPS.
CCRS developed a low
cost and easy to use technique to enable such depth surveys to be rapidly carried out. The technology transfer aspect of the activity was aimed to allow Nunavut professionals to produce lake depth maps with low cost and easy to use tools and
software. The enclosed datasets were produced under the ''Enhancing Resilience in a Changing Climate Program'' of the Earth Sciences Sector, Natural Resources Canada. Thousands of depth survey points were acquired between July 25th and August 1st
2008 by CCRS scientists, Nunavut Department of Environment staff, and a teacher of the Nunavut Arctic College.
Several large format image maps were printed and distributed to the Municipality of Iqaluit, the Department of Community and Government
Services offices in all three regions of Nunavut, the Department of Indian and Northern Affairs, etc., and were presented at several venues.
This document describes the digital dataset of Geraldine Lake provided to the Planning and Lands office of
the Municipality of Iqaluit.