Library Catalogue

Library Catalogue

  • external user (warningwarning)
  • Log in as
  • About the Catalogue

    Union Catalogue of Agricultural Libraries in the Netherlands

    The WUR Library Catalogue contains bibliographic data on books and periodicals held by the libraries of Wageningen University and Research Centre and some 15 associated libraries. Holding data are added to each record.

    Subjects covered include Agrotechnology, Food and Food Production, Plant and Animal Sciences, Soil Science, Geo-information, Landscape and Spatial Planning, Water and Climate, Ecosystem Studies, Economics and Society.

    The joint collections of the participating libraries cover a substantial part of the internationally available scientific literature in these disciplines.

    As far as Dutch scientific literature in these fields is concerned, coverage can be considered near 100%, including much of the so-called "grey literature".

    All titles are entered in their original language. Keywords are added to facilitate subject searching.

    The database is updated every day and now contains over 830.000 records.

Record number 104288
Title Wind-profile measurements above a maize crop
show extra info.
T. Reitsma
Author(s) Reitsma, T.
Publisher Wageningen : Centre for Agricultural Publishing and Documentation
Publication year 1978
Description 103 p ill
Notes Proefschrift Wageningen  show all notes
Met een samenvatting in het Nederlands
Ook verschenen als handelsuitgave
ISBN 9022006840
Tutors Schenk, Prof. Dr. Ir. J.
Graduation date 1978-12-07
Dissertation no. 744
Author abstract show abstract
An experiment of wind-profile measurements above a maize crop was described. First the mean ratio between the height of the adapted layer and the fetch was deduced from profile measurements at several positions in the field. The height-to-fetch ratio amounted to 1/64. Because of too small a fetch, the vertical transport of momentum between the maize crop and the atmosphere could not be estimated accurately enough from the windprofile measurements only. The parameters of the assumed logarithmic wind profile, the zero-plane displacement and the roughness length, could only be estimated from a comparison of wind-profile measurements with simultaneous eddy-correlation measurements. In the present experiment, the zeroplane displacement d and the roughness length z0 could be expressed in the height h of the full-grown crop as d = 0.5 h and z0 = 0.11 h, respectively. The application of a common empirical relationship from the literature (e.g. d = 0.6 h ) led to considerable systematic errors of the estimated friction velocity above maize.
Online full textINTERNET
On paper FORUM ; STACKS ; NN08202,744
FORUM ; STACKS ; NN08200,744
Keyword(s) (cab) zea mays / maize / climate / vegetation / forests / wind / turbulence / agriculture / climatic change / meteorological observations / atmosphere / calculation / methodology / netherlands / influences / land surface / boundary layer
Categories Maize
Publication type PhD thesis
Language English
There are no comments yet. You can post the first one!
Post a comment

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.

Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.