January 17, 2006
The main features in this ASAR image include the flood plains of two major rivers, seen in blue: the Ottawa River (in the top section of the image) and the St. Lawrence River (in the bottom half of the image). Also visible are a significant urban area (in yellow and light green), intensive agricultural areas (dark green regions), forests (in brown) and the geological features associated with the Adirondack Mountains, (part of the process that formed the Appalachian Mountains). The large urban area at the top of the image is the Capitol Region of Canada, consisting of the cities of Ottawa, Ontario (on the south side of the Ottawa River) and Hull, Quebec (on the north side of the river). The area to the south, between Ottawa and the St. Lawrence Rivers, is a significant agricultural region supporting the Ottawa/Hull region. This area consists of numerous smaller urban areas, post-glacial features (drumlin fields, moraines, etc.), inter-connected lakes, and the Rideau River/Rideau Canal system (built in 1812), providing a transportation link between the two larger rivers. The St. Lawrence River, in this region, defines the international boundary between Canada and the US. Two bridges are visible, one located at Cornwall, Ontario (the extreme right center of the image), and further upstream in the image center, the Prescott-Ogdensburg International Bridge. At the extreme left of the image, the St. Lawrence River widens into the boundary recreational area known as Thousand Islands. The U.S. side of the St. Lawrence River consists of flood plains, mixed agricultural and small urban zones, and a range of low mountains to the south. In the lower left section of the image, observable are the geological folding patterns associated with the Appalachian Mountain system. This mountain system, being one of the oldest on the continent, has been subjected to numerous geological pressures over time. The mountains, forests and lakes represent a major recreational area in the upper New York State region.
- Satellite: Envisat
- Instrument: ASAR
- Acquisition: 24-Jul-2002
- Orbit nr: 02076
- Center coordinates: lat. 45.00, lon. -75.37
Topics: Environment, Ottawa River, Gatineau, Canadian Heritage Rivers, Lawrence River, Appalachian Mountains, Rideau River, Saint Lawrence River, Rideau Canal, Hull, Quebec, Ottawa, Canada, Hospitality Recreation