Chemical Temperature IntegrationSource: Journal of Applied Meteorology:;1969:;volume( 008 ):;issue: 003::page 423Author:Lee, Richard
DOI: 10.1175/1520-0450(1969)008<0423:CTI>2.0.CO;2Publisher: American Meteorological Society
Abstract: The sugar-inversion method (Pallmann method) of deriving mean temperatures related the reaction velocity of sucrose hydrolysis to temperature by means of an Arrhenius-type equation. The method was tested for precision, accuracy and adaptability to climatological networks. Twenty-milliliter glass ampoules filled with a clear sucrose solution were used as temperature sensors. The sensors were virtually unaffected by shortwave radiation. Precision of the method for half-month periods in forested terrain was ±0.02C. Absolute accuracy of the method was severely affected by the nonlinearity of sensor response; this was circumvented by use of empirical corrections based on the temperature mean and amplitude. At five standard climate stations, arithmetic mean temperatures for half-month periods (1967?1968) were predicted with an average error of 0.37?0.64C in summer (over mean temperatures of 30 to 10C) and 0.86?1.05C in winter (over mean temperatures of 10 to ?10C). The Pallmann method of temperature integration is simple and economical. With the addition of 150 gm liter?1 sodium chloride to the sucrose solution, the method is usable in all seasons.
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contributor author | Lee, Richard | |
date accessioned | 2017-06-09T17:02:32Z | |
date available | 2017-06-09T17:02:32Z | |
date copyright | 1969/06/01 | |
date issued | 1969 | |
identifier issn | 0021-8952 | |
identifier other | ams-7840.pdf | |
identifier uri | http://onlinelibrary.yabesh.ir/handle/yetl/4221067 | |
description abstract | The sugar-inversion method (Pallmann method) of deriving mean temperatures related the reaction velocity of sucrose hydrolysis to temperature by means of an Arrhenius-type equation. The method was tested for precision, accuracy and adaptability to climatological networks. Twenty-milliliter glass ampoules filled with a clear sucrose solution were used as temperature sensors. The sensors were virtually unaffected by shortwave radiation. Precision of the method for half-month periods in forested terrain was ±0.02C. Absolute accuracy of the method was severely affected by the nonlinearity of sensor response; this was circumvented by use of empirical corrections based on the temperature mean and amplitude. At five standard climate stations, arithmetic mean temperatures for half-month periods (1967?1968) were predicted with an average error of 0.37?0.64C in summer (over mean temperatures of 30 to 10C) and 0.86?1.05C in winter (over mean temperatures of 10 to ?10C). The Pallmann method of temperature integration is simple and economical. With the addition of 150 gm liter?1 sodium chloride to the sucrose solution, the method is usable in all seasons. | |
publisher | American Meteorological Society | |
title | Chemical Temperature Integration | |
type | Journal Paper | |
journal volume | 8 | |
journal issue | 3 | |
journal title | Journal of Applied Meteorology | |
identifier doi | 10.1175/1520-0450(1969)008<0423:CTI>2.0.CO;2 | |
journal fristpage | 423 | |
journal lastpage | 430 | |
tree | Journal of Applied Meteorology:;1969:;volume( 008 ):;issue: 003 | |
contenttype | Fulltext |