13C.6
Pheno-, weather- and NDVI-data comparison for selected Czech pheno-stations
PAPER WITHDRAWN
Ivan Kott, Czech Hydrometeorological Institute, Prague, Komorany, Czech Republic; and J. Nekovár, M. Hirschberg, and A. Menzel
The study named Meteo-, pheno- and NDVI-data comparison for Czech wild plants which was presented by authors in Wageningen conference ('The times they are a-changin', 5-7 December 2001) is extended for fruit trees and field crops just as for weather and NDVI-data to the year 2001. The aim is to find or determine not only the interactive relations between weather, NDVI and phenological data during the period 1995/2001, but also the more common conformity among wild and cultural plants phenological data.
Phenological data of the wild plants, fruit trees and field crops in the Czech Republic are compared to meteorological and NDVI satellite data. For several selected stations from the Czech phenological network trends are calculated for the 1995/2001 period. The Czech NDVI scenes are cut out from the European NOAA/AVHRR NDVI maps processed by the German Remote Sensing Data Center (Deutsches Fernerkundungsdatenzentrum - DFD) of the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt - DLR). For the analysis weekly maximum value composites of the NDVI (Normalized Difference Vegetation Index) from Feb 20, 1995 to Sep 9, 2001 are used.
Meteorological data, such as daily average temperature, daily maximum and minimum temperature, as well as precipitation and total sunshine energy, is used. Phenological data of wild plants are computed according to Czech control & correction programme in order to get biotime curve for every station and vegetation season, selected data of wild plants, fruit trees and field crops are added.
Session 13C, Phenology: Satellite and Global Assessment Issues
Thursday, 31 October 2002, 3:30 PM-5:00 PM
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