Hough functions to spherical harmonics data transformation

Sela, Joseph

Back to Previous Page

- Add this to...
- Twitter
- Facebook
- Google Bookmarks
- LinkedIn

Hough functions to spherical harmonics data transformation

Published Date:

1974

Series:

Office note (National Meteorological Center (U.S.)) ; 95

[PDF-360.00 KB]

Details:

Personal Authors:

Sela, Joseph

Corporate Authors:

National Meteorological Center (U.S.)

Keywords:

[+]

Description:

The NMC global wind height and relative humidity analysis using Hough functions is transformed into an expansion of those fields in spherical harmonics. The computer program uses eigenfrequencies computed by Flattery to generate tidal eigenfunction for twenty four zonal modes. The resulting spherical harmonic expansion has the same zonal resolution and a meridional truncation of n = 55.

Document Type:

Professional Paper

Collection(s):

National Weather Service (NWS)

Place as Subject:

United States

Supporting Files:

No Additional Files

No Related Documents.

You May Also Like:

The National Meteorological Center's spectral statistical interpolation analysis system

Personal Author:

Parrish, David F.; Derber, John C.;

Corporate Author:

National Meteorological Center (U.S.)

Published:

1991

Series:

Office note (National Centers for Environmental Prediction (U.S.)) ; 379

Description:

At the National Meteorological Center (NMC), a new analysis system is being extensively tested for possible use in the operational Global Data Assimilation System. This analysis system is called the Spectral Statistical Interpolation (SS1) Analysis s...

File Type:

[PDF - 2.35 MB]
Practical predictability

Personal Author:

Gerrity, Joseph P.; Parrish, David F.;

Corporate Author:

National Meteorological Center (U.S.)

Published:

1982

Series:

Office note (National Centers for Environmental Prediction (U.S.)) ; 255

Description:

"Practical predictability refers to the application of some of the techniques, used in the investigation of the classical predictability problem by Lorenz, Leith, and Smagorinsky, to the assessment of the operational performance of weather prediction...

File Type:

[PDF - 1.72 MB]
On computation of Hough functions

Personal Author:

Wang, H. J.; Boyd, J. P.; Akmaev, R. A.;

Published:

2016

Source:

Geoscientific Model Development, 9(4), 1477-1488.

Series:

CIRES (Cooperative Institute for Research in Environmental Sciences)

Description:

Hough functions are the eigenfunctions of the Laplace tidal equation governing fluid motion on a rotating sphere with a resting basic state. Several numerical methods have been used in the past. In this paper, we compare two of those methods: normali...

File Type:

[PDF - 1.16 MB]
An assessment of analysis performance

Personal Author:

McPherson, Ronald D.

Corporate Author:

National Meteorological Center (U.S.)

Published:

1980

Series:

Office note (National Centers for Environmental Prediction (U.S.)) ; 221

Description:

"Previous lectures in this series have discussed the theory and application of the NMC global data assimilation system, as well as its antecedents and the data base it is asked to assimilate. The series concludes with this examination of the performa...

File Type:

[PDF - 2.06 MB]
Generating codes for a complete spectral system with arbitrary vertical and horizontal resolution

Personal Author:

Sela, Joseph G.

Corporate Author:

National Meteorological Center (U.S.)

Published:

1981

Series:

Office note (National Centers for Environmental Prediction (U.S.)) ; 235

Description:

"This office note documents the steps involved in creating codes and fixed fields necessary for the computer implementation of a spectral forecast system with arbitrary vertical and horizontal resolution. The only limitation on the horizontal resolut...

File Type:

[PDF - 1.11 MB]