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On the measurement on weather and evaporation at a peat production site; Saeaen ja haihdunnan mittaus turvetuotantopaikalla

Abstract

A real time measuring system for the relevant components of micro climate of a peat production site is described. The system is applicable, during the production season, for the continuous monitoring of standard weather and heat flux components over milled peat. Potential and actual evaporation is calculated from the measured data. Actual evaporation was obtained with the aerodynamic method using the information of measured surface temperature. The method gave consistent results with the Bowen- ratio method which was used as the microclimatological reference. Due to practical reasons the net-radiationmeter had to be placed over an uncultivated peat. This resulted in an overall underestimation of the evaporation, particularly on the occasions of turning of the milled peat layer. The bias in evaporation can be improved by calculating the net-radiation from measured surface temperature and global radiation data. The evaporation patterns corresponding to harvest runs and occasions of turning of the milled peat layer are discussed.
Authors:
Heikinheimo, M; Koskela, T [1] 
  1. Finnish Meteorological Inst., Helsinki (Finland)
Publication Date:
Oct 01, 1991
Product Type:
Technical Report
Report Number:
VTT-OPT-35
Reference Number:
SCA: 010600; PA: FI-92:003003; SN: 92000719979
Resource Relation:
Other Information: DN: OPTIMITURVE Research Programme; PBD: Oct 1991
Subject:
01 COAL, LIGNITE, AND PEAT; PEAT; HUMIDITY CONTROL; EVAPORATION; WEATHER; MONITORING; MEASURING METHODS; MEASURING INSTRUMENTS; TEMPERATURE MEASUREMENT; 010600; PROPERTIES AND COMPOSITION
OSTI ID:
10141545
Research Organizations:
Technical Research Centre of Finland, Jyvaeskylae (Finland). Combustion and Thermal Engineering Lab.
Country of Origin:
Finland
Language:
Finnish
Other Identifying Numbers:
Other: ON: DE92506477; ISBN 952-9500-33-5; TRN: FI9203003
Availability:
OSTI; NTIS (US Sales Only)
Submitting Site:
FI
Size:
42 p.
Announcement Date:
Jul 05, 2005

Citation Formats

Heikinheimo, M, and Koskela, T. On the measurement on weather and evaporation at a peat production site; Saeaen ja haihdunnan mittaus turvetuotantopaikalla. Finland: N. p., 1991. Web.
Heikinheimo, M, & Koskela, T. On the measurement on weather and evaporation at a peat production site; Saeaen ja haihdunnan mittaus turvetuotantopaikalla. Finland.
Heikinheimo, M, and Koskela, T. 1991. "On the measurement on weather and evaporation at a peat production site; Saeaen ja haihdunnan mittaus turvetuotantopaikalla." Finland.
@misc{etde_10141545,
title = {On the measurement on weather and evaporation at a peat production site; Saeaen ja haihdunnan mittaus turvetuotantopaikalla}
author = {Heikinheimo, M, and Koskela, T}
abstractNote = {A real time measuring system for the relevant components of micro climate of a peat production site is described. The system is applicable, during the production season, for the continuous monitoring of standard weather and heat flux components over milled peat. Potential and actual evaporation is calculated from the measured data. Actual evaporation was obtained with the aerodynamic method using the information of measured surface temperature. The method gave consistent results with the Bowen- ratio method which was used as the microclimatological reference. Due to practical reasons the net-radiationmeter had to be placed over an uncultivated peat. This resulted in an overall underestimation of the evaporation, particularly on the occasions of turning of the milled peat layer. The bias in evaporation can be improved by calculating the net-radiation from measured surface temperature and global radiation data. The evaporation patterns corresponding to harvest runs and occasions of turning of the milled peat layer are discussed.}
place = {Finland}
year = {1991}
month = {Oct}
}