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Climate Indices

Select climate indices according to following criteria:

Time series: evolution of observations (inter-annual variability)
Seasonal/annual cycle: monthly or seasonal "normals" for a year's period, calculated using a large number of years (preferably the 1971-2000 period).
Anomalies: evolution of anomalies (observations - normals)

Oceanographic

NAME	UPDATE FREQ.	VAR. CODE	DEPTH	TIME SERIES	TIME SERIES FREQ.	CYCLE	CYCLE FREQ.	INDEX ORIGIN	DATA ORIGIN
1.Monthly sea level Monthly-averaged sea level computed from selected tidal stations' records	Monthly	SL	Surface	1895- 2011	Monthly	1981- 2010	Monthly	MEDS	DFO
2.Hydrographic Profiles Annual cycle of hydrographic profiles at AZMP stations derived by long-term means	Decadal	T S RHO	0- 300	x	x	1971- 2000	Monthly	MEDS	DFO
3.Sea Surface Temperature Climatology Annual cycle of SST derived from harmonic analysis performed on remote sensing observations	Yearly	SST	Surface	x	x	1981- 2000	daily	MEDS/ BIO	NOAA-JPL AVHRR MCSST
4.Labrador Current Volume Transport Surface (top 200 m) geostrophic transport across Newfoundland and Grand Banks slopes derived from TOPEX/Poseidon altimetry	Yearly	MT	Surface	1992- 2010	Monthly	x	x	NAFC	TOPEX/ Poseidon
5.Gulf Stream and Shelf/Slope Fronts Mean position and anomaly of the Gulf Stream and Shelf/Slope Fronts	Yearly	LAT	Surface	1966- 2010	Monthly	x	x	BIO	Jennifer Clark /NOAA
6.Coastal SST Annual averages and cycle of SST near Boothbay, St. Andrews and Halifax	Yearly	T	Surface	1902- 2010	Yearly	1981- 2010	Monthly	BIO	DFO
7.East Coast Offshore Hydrographic Stations Annual averages and cycle of surface and bottom temperature at offshore hydrographic stations	Yearly	SST	0- 250	1912- 2010	Yearly	1981- 2010	Monthly	BIO	DFO
8.Depth-layer Conditions for the Gulf of St. Lawrence Layer Averaged Yearly Conditions in the Gulf of St. Lawrence	Yearly	T	30- 300	1915- 2010	Yearly	x	x	IML	DFO
9.Cold Intermediate Layer - T Yearly minimum temperature in waters deeper than 100m for the Gulf of St. Lawrence	Yearly	T	100- 100	1947- 2005	Yearly	x	x	IML	DFO
10.Cold Intermediate Layer - Area Cold intermediate layer (CIL) area at Bonavista, Flemish Cap, and Seal Island	Yearly	A	100- 100	1928- 2005	Yearly	x	x	NAFC	DFO
11.Bottom Temperature Area vs temperature-range distribution of bottom waters in Northern Gulf, Magdalen Shallows and NAFO 4 sub-areas regions	Yearly	T A	Bottom	1970- 2005	Yearly	x	x	BIO	DFO
12.Snow Crab Areal Index Bottom temperature and area of waters within (-1ºC to 3ºC) temperature	Yearly	T A	Bottom	1965- 2010	Yearly	x	x	BIO	DFO

Ice

NAME	UPDATE FREQ.	VAR. CODE	DEPTH	TIME SERIES	TIME SERIES FREQ.	CYCLE	CYCLE FREQ.	INDEX ORIGIN	DATA ORIGIN
13.Iceberg count Annual number of iceberg observations south of 48° Latitude	Yearly	Count	Surface	1899- 2010	Monthly	x	x	BIO	USCG IIP
14.Ice coverage Monthly Ice Coverage over Scotian Shelf, Newfoundland Shelf, and the Gulf of St. Lawrence	Yearly	A	Surface	1962- 2010	Weekly	x	x	BIO	CIS EC

Freshwater

NAME	UPDATE FREQ.	VAR. CODE	DEPTH	TIME SERIES	TIME SERIES FREQ.	CYCLE	CYCLE FREQ.	INDEX ORIGIN	DATA ORIGIN
15.Freshwater runoff -Hudson Annual average discharge and seasonal cycle	No	Di	Surface	1963- 1992	Monthly	1961- 1990	Monthly	BIO/ IML	DFO
16.Freshwater runoff -St. Lawrence River Annual average discharge and seasonal cycle	Yearly*	Di	Surface	1914- 2010	Monthly	1981- 2010	Monthly	IML	DFO
17.Freshwater runoff -Saint John River Annual average discharge and seasonal cycle	No	Di	Surface	1918- 1999	Monthly	1961- 1990	Monthly	BIO	DFO

Atmospheric

NAME	UPDATE FREQ.	VAR. CODE	DEPTH	TIME SERIES	TIME SERIES FREQ.	CYCLE	CYCLE FREQ.	INDEX ORIGIN	DATA ORIGIN
18.Air Temperature Monthly mean temperature, annual averages and cycle of air temperature	Yearly	AT	Surface	1866- 2010	Monthly	1981- 2010	Monthly	BIO	Weather Office EC
19.North Atlantic Oscillation Average annual difference in atmospheric pressure between the Iceland low and Azores high	Yearly	P	Surface	1895- 2010	Yearly	x	x	BIO

Displaying 19 indices out of 19

Variable codes:

A	Area
AT	Air Temperature
Di	Discharge (volume per time units)
LAT	Latitude
MT	Meridional Transport
P	Pressure
RHO	Density
SL	Sea level
SST	Sea Surface Temperature
T	Temperature
WS	Wind Speed
WD	Wind Direction