AT655: Objective Analysis in the Atmospheric Sciences

Data

Gridded surface temperature data
Global gridded surface temperature data from Brohan et al. JGR 2006 (also used in IPCC FAR). The data are monthly-means gridded on a 5x5 degree mesh. The matrix is size 576 x 2592. The first row is January 1958; the last row is December 2005.
For each row:
The first 72 numbers correspond to data centered 87.5 South: the first element centered at 2.5 E, the second 7.5 E ... the 72nd element at 357.5 E. Successive sets of 72 numbers correspond to data at 82.5 South, 77.5 South, and so on until 87.5 North.

Northern Hemisphere gridded 500-hPa height
Gridded 500-hPa height data is described in Kalnay et al., BAMS (1996). The data are monthly-means gridded on a 5x5 degree mesh. The matrix is size 516 x 1080. The first row is January 1958; the last row is December 2000.
For each row:
The first 72 numbers correspond to data at 88.75 North: the first element is 1.25 E, the second 6.25 E ... the 72nd element is 356.25E. Successive sets of 72 numbers correspond to data at 83.75 North, 78.75 North, and so on until 18.75 North.

ENSO index Nino 3.4 index: sea surface temperature anomalies in the eastern equatorial Pacific (5 North-5 South)(170-120 West). The first element is January 1958; the last is December 2005. Obtained from Todd Mitchell at JISAO/UW.

Fort Collins precipitation data Monthly mean precipitation for FtCollins. The first element is January 1958; the last is December 2000. Unites are in inches. (Thanks to Paul Ciesielski for obtaining the data!).

HW6_Timeseries_1 Time series for spectral analysis HW.

HW6_Timeseries_2 Time series for spectral analysis HW.

HW6_Timeseries_3 Time series for spectral analysis HW.

Timeseries_HW7_1 Time series for cross spectrum analysis HW.

Timeseries_HW7_2 Time series for cross spectrum analysis HW.

David W. J. Thompson davet@atmos.colostate.edu