Thermograph Network - Summary & History

List of stations

The stations included in the permanent thermograph network are selected through a process involving numerous consultations. The program aims to cover all coastal and offshore areas of the estuary and Gulf of St. Lawrence using a minimum of stations. Good spatial and temporal coverage should permit the creation of a climatology atlas for this zone while also meeting shorter-term needs for this type of data.

Name Position

(lat, long)
Depth (m) Immersion depths

thermographs (m)
Comments
Lower St. Lawrence / Gaspésie
Bic

Three thermographs record water temperature at depths of 1, 2, and 30.5 metres.

The Bic Islands station in the Lower St. Lawrence region is one of the stations used to evaluate the quality of satellite images. Three thermographs attached to a Canadian Coast Guard buoy (or near its anchor) record water temperature at half-hour intervals during the summer and fall.

Bic 48° 19.951' N

69° 00.918' W
30.5 1.0, 2.0, 30.5
Rimouski

Two thermographs record water temperature at depths of 0.5 and 312 metres.

The buoy at Rimouski station is equipped with sensors measuring metorological, ocenographic and optical parameter. The data acquisition is made only during summer and automn due to ice cover. We only present here temperature and salinity data.

Rimouski 48° 40.000' N

68° 35.000' W
330.0 0.5, 330.0
Maurice Lamontagne Institute

Two thermographs record water temperature at depths of 0.5 and 15 metres.

Temperature readings are taken near the seawater intake of the Maurice Lamontagne Institute, at the western boundary of the Gaspé Peninsula. The seawater intake, which supplies seawater for this research facility, is situated at a depth of nearly 15 metres. As is the case for most stations in the network, temperature is also recorded near the surface (at a depth of about 50 centimeters). Continuous recording is done only in summer and fall.

MLI-3 - A 48° 39.600' N

68° 09.390' W
15.0 0.5, 15.0
MLI-3 - B 48° 39.520' N

68° 09.390' W
15.0 15.0
Grande-Rivière

Two thermographs record water temperature at depths of 2 and 10 metres.

Temperature data from Grande Rivière in the Gaspé region may be used in research on certain pelagic species like herring. One thermograph is installed on a Canadian Coast Guard buoy; another is located near the buoy anchor, at a depth of about 10 metres. These instruments record water temperature at half-hour intervals during the summer and fall.

Grande-Rivière 48° 23.330' N

64° 29.527' W
10.0 0.5, 2.0, 10.0
Gaspé Current
Gaspé Current 49° 14.500' N

66° 12.000' W
165.0 0.5, 165.0
Québec's North Shore
Baie-Comeau

Two thermographs record temperature at depths of 1 and 82.3 metres.

A thermograph has been installed on a Coast Guard buoy while another thermograph is near the anchor at 82 metres depth.

Baie-Comeau 49° 12.069' N

68° 03.351' W
82.3 1.0, 82.3
Sept-Îles

Three thermographs record temperature at depths of 1, 2 and 21.9 metres.

The Sept Îles site is representative of the North Shore regions where upwelling of cold waters occurs. The thermographs are installed on a Canadian Coast Guard buoy near the surface and near the buoy anchor at a depth of 22 metres.

Sept-Îles 50° 10.286' N

66° 25.764' W
21.9 1.0, 2.0, 21.9
Rivière au Tonnerre

Two thermographs record water temperature at a depth of 1 and 16 metres.

Studies on the Stimpson's surf clam led to the monitoring of waters in this area. No data are available for near-surface temperatures; however, data are available from a thermograph situated near the anchor of a Canadian Coast Guard buoy, at a depth of 16 metres.

Rivière-au-Tonnerre 50° 15.827' N

64° 46.792' W
16.0 1.0, 16.0
Havre-Saint-Pierre

Two thermographs record water temperature at depths of 2 and 120 metres.

The Havre St. Pierre station is one of the stations used to access the quality of satellite images. Two thermographs are installed on an ODAS (Ocean Data Acquisition System) scientific buoy during the ice-free season. One of them is situated at a depth of 120 metres, near the buoy anchor and the other is installed on the buoy near the surface water.

Havre-Saint-Pierre 50° 06.504' N

63° 38.459' W
120.0 0.5, 1.0, 2.0, 120.0
Natashquan

Two thermographs record water temperature at depths of 1 and 5.4 metres.

Two thermographs are installed on a Canadian Coast Guard buoy, but only during the summer and fall. The deepest one is placed near the buoy anchor, at a depth of less than 6 metres.

1 2 3 essay help Discussion

The mean temperature between May and October was very similar in 1994 and 1995, ranging within a tenth of a degree of 10.8 ºC. However, the mean temperature between May 25 and June 21 1995 was 3 ºC higher than in 1994, indicating that the North Shore experienced a milder spring in 1995 than in 1994. The daily means exibit even greater variability: on some days the water temperature was nearly 15 ºC warmer or colder than on the same date a year earlier. This substantial variability in surface water temperature at Natashquan is likely due to episodic nature of the wind-induced upwelling of coastal water. Based on the monthly means, however, the difference between temperatures in 1994 and 1995 was less than 1 ºC.

Natasquan 50° 11.204' N

61° 50.672' W
5.4 1.0, 5.4
La Romaine

Three thermographs record water temperature at depths of 1, 2, and 21.9 metres.

At the La Romaine site on the Lower North Shore, the thermographs are attached to a Canadian Coast Guard buoy. The deepest thermograph is situated near the buoy anchor at a depth of about 22 metres. Data collected near the surface can be used to evaluate the quality of satellite images.

La Romaine 50° 07.306' N

60° 18.581' W
21.9 1.0, 2.0, 21.9
La Tabatière

Two thermographs record water temperature at depths of 1 and 39 metres.

Two thermographs are installed on a Canadian Coast Guard buoy, but only during the summer and fall. The deepest one is placed near the buoy anchor, at a depth of less than 39 metres.

online personal statement Note: This station has been added to the Thermograph Network in 2002.

La Tabatière 50° 51.203' N

58° 57.014' W
39.0 1.0, 39.0
Blanc-Sablon

Two thermographs record water temperature at depths of 1 and 36 metres.

Blanc Sablon station is the northernmost station of thermograph network. One thermograph is installed on the Coast Guard buoy while another thermograph is near the anchor at 22 metre depth.

Blanc-Sablon 51° 23.972' N

57° 11.647' W
22.0 1.0, 22.0
Belle-Isle

One thermograph record water temperature at depth of 105 metres.

Belle-Isle station is equipped with a thermograph near bottom measuring seawater temperature in continous. Du to ice that are present most of the year no instrumment is at surface. The water depth is about 110 metres while the instrument is 5 metres from bottom.

Belle-Isle - A 51° 21.100' N

56° 52.500' W
111.0 105.0 Monitored from 2004 to 2006
Belle-Isle - B 51° 34.800' N

56° 37.200' W
75.0 71.0 Monitored since 2007
Estuary / Anticosti Island
Mont-Louis

Two thermographs record water temperature at depths of 0.5 and 30 metres

In spite of what its name suggests, this station is located in the middle of the estuary. One thermograph is installed just below the water surface on an Environment Canada weather buoy used for atmospheric measurements. Another thermograph at a depth of 30 metres is also operational. The buoy is anchored in water more than 300 metres deep. Water temperature is measured continuously, but only during the summer and fall.

Mont-Louis 49° 32.598' N

65° 45.583' W
325.0 0.35, 0.50, 1.1, 2.1, 30.0, 200.0
Port-Menier

Two thermographs record water temperature at depths of 2 and 12.8 metres.

The Port Menier station operates using a Canadian Coast Guard buoy located near Anticosti Island. Two thermographs, one attached near the surface and the other near the buoy anchor, at a depth of 13 metres, record water temperature every half hour during the summer and fall.

Port-Menier 49° 46.225' N

64° 20.621' W
12.8 2.0, 12.8
Anticosti Gyre
Anticosti Gyre 49° 43.000' N

66° 15.000' W
337.0 0.5, 337.0 This station is no longer monitored since 2012
Saguenay Fjord
Tadoussac

Two thermographs record temperature et depths of 2 and 36.6 metres.

For several years, many stakeholders have been involved in creating a marine park in the Saguenay Fjord. Once this happens, this environment, which has already been researched extensively, is likely to receive even more attention. Some studies have called for monitoring of water temperature over a number of years. Thermographs attached to a Canadian Coast Guard buoy (or near the anchor) record water temperature every half hour during the summer and fall.

Tadoussac 48° 07.185' N

69° 40.503' W
36.6 1.0, 2.0, 36.6
North-East Gulf
Banc Beaugé

Three thermographs record water temperature at depths of 0.5, 1 and 97 metres.

Banc Beaugé station is located in the North-East of St. Lawrence Gulf. The ODAS buoy is installed by the Canadian Coast Guard. The temperature measured at this station are used for calibrating satellite image of sea surface temperature. One thermograph is installed directly on the buoy at 1 metre. Another thermograph near the buoy anchor measure temperature at a depth of about 97 metres. During summer and automn temperature are measured each 30 minutes.

Banc Beaugé 49° 30.077' N

60° 03.984' W
97.0 0.5, 1.0, 97.0
Old Harry
Old Harry 48° 00' N

60° 30.0' W
457.0 0.5 Note that these data are not released
Prince Edouard Island
Borden

A thermograph records water temperature at a depth of 3.5 metres.

This station also collects winter data.

A lengthly time series is already available for Borden on Prince Edward Island. This is one of the few stations where temperatures have been recorded in winter as well as summer. The thermographs are installed in a PVC cylinder attached to the public wharf at Borden. One was located 50 centimeters below the surface (it was taken out of service in 1996); the other is on the seabed, at a depth of 3 metres. Year after year, this station exhibits the highest mean monthly temperature in the entire thermograph network. Northumberland Strait therefore represents the warmest region in the Gulf of St. Lawrence during the summer.

Borden 46° 14.964' N

63° 42.060' W
1.0 1.0
Magdelen Islands
Île Shag

Two thermographs record water temperature at depths of 1 and 10 metres.

This station also collects winter data at a depth of 10 metres.

The temperature readings taken at Shag Island in the Magdalen Islands are considered essential for biological studies on such topics as lobster growth, moulting, and reproduction. They are also used to analyse fishing yields. A local fisher installs the two thermographs every summer at depths of 1 metres and 10 metres.

Shag Island 47° 28.510' N

61° 41.300' W
10.0 1.0, 10.0
La Perle

Two thermographs record water temperature at a depth of 1 and 26 metres.

The La Perle staion in the Magdalen Islands is one of the stations used to evaluate the quality of satellite images. A surface thermograph installed on the Pearl Reef buoy is operational during the summer and fall. In 1997, a second thermograph has been installed near the buoy anchor at a depth of 26 metres.

La Perle 47° 19.470' N

61° 34.307' W
26.0 1.0, 26.0
Southern Gulf
Irving Whale

Two thermographs record water temperature at depths of 1 and 67 metres.

Irving Whale station is located in the Southern Gulf of St. Lawrence. The temperature measured at this site are used for calibrating satellite image of sea surface temperature. A thermograph is installed directly on the ODAS buoy while another thermograph mesure seawater temperature near the anchor buoy. The buoy is installed and recovered by the Canadian Coast Guard.

Irving Whale 47° 24.200' N

63° 23.530' W
67.0 0.5, 1.0, 67.0
Shediac

Two thermographs record water temperature at depths of 0.5 and 82 metres.

Shediac station is located in the Southern Gulf of St. Lawrence and made part of Atlantic Zone Monitoring Program (AZMP). An oceanographic buoy measuring oceanographic, meteorologic and optical data is installed at this station during free ice season. The temperature measured at this site are used for calibrating satellite image of sea surface temperature.

Shediac 47° 47.000' N

64° 02.000' W
82.0 0.5, 82.0
Newfoundland
Bonne Bay

Two thermographs record water temperature at depths of 1 and 25 metres.

This station also collects winter data at a depth of 25 metres.

Satellite images of the sea surface temperature in this region, along with wind measurements, indicate that the Bonne Bay site is representative of the upwellings and downwellings of cold water that occur there. In addition, observations have shown that large concentrations of herring are present here during the fall,. A local resident installs the thermographs at depths of 1 metre and 25 metres (on the bottom).

doing college homework Note: We have impose an embargo on data recorded at 25 metres due to possible problem with instrument position.

Bonne Bay 49° 32.300' N

57° 56.000' W
25.0 0.5, 25.0 This station is no longer monitored since 2005