letters to the editor

letters to the editor During an investigation of evaporation, I was looking for some formulas to compute saturation vapor pressure. One of the textbooks, Handbook of Meteorology, edited by David D. Houghton, contains an error in the formulation given for a particular saturation vapor pressure computation. This error is found in Chapter 16, written by H. Vernon Knapp. The error is found on page 538, formula 16.1, and appears below: e = 33.8639[(.007387~ + .8072) - .000019(1.8T + 48) + .001316]. 0 0 0 After reviewing Knapp's reference, Linsley et al. (1975), I found that a power of eight was inadventently left out of the formula. The correct formula as per Linsley is as follows: e - 33.8639[(.007387~ + .8072)8 - .000019(1.87" + 48) + .001316]. Q 0 0 JAMES H . MEYER APPLIED PHYSICS LABORATORY THE JOHNS HOPKINS UNIVERSITY LAUREL, MARYLAND References Linsley, R. K., M. A. Kohler, and J. L. H. Paulhus, 1975: Hydrology for Engineers. McGraw Hill. ©1995 American Meteorological Society Bulletin of the American Meteorological Society 1225 1996 ANNUAL MEETING SHORT COURSES Plan Now To Attend The following short courses will be held during the weekend of 27-2 8 January 1996, just prior to the 1996 AMS Annual Meeting http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
D.O.I.
10.1175/1520-0477-76.7.1225
Publisher site
See Article on Publisher Site

Abstract

During an investigation of evaporation, I was looking for some formulas to compute saturation vapor pressure. One of the textbooks, Handbook of Meteorology, edited by David D. Houghton, contains an error in the formulation given for a particular saturation vapor pressure computation. This error is found in Chapter 16, written by H. Vernon Knapp. The error is found on page 538, formula 16.1, and appears below: e = 33.8639[(.007387~ + .8072) - .000019(1.8T + 48) + .001316]. 0 0 0 After reviewing Knapp's reference, Linsley et al. (1975), I found that a power of eight was inadventently left out of the formula. The correct formula as per Linsley is as follows: e - 33.8639[(.007387~ + .8072)8 - .000019(1.87" + 48) + .001316]. Q 0 0 JAMES H . MEYER APPLIED PHYSICS LABORATORY THE JOHNS HOPKINS UNIVERSITY LAUREL, MARYLAND References Linsley, R. K., M. A. Kohler, and J. L. H. Paulhus, 1975: Hydrology for Engineers. McGraw Hill. ©1995 American Meteorological Society Bulletin of the American Meteorological Society 1225 1996 ANNUAL MEETING SHORT COURSES Plan Now To Attend The following short courses will be held during the weekend of 27-2 8 January 1996, just prior to the 1996 AMS Annual Meeting

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Jul 1, 1995

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