The scheme for globalization of a process-based model explaining gradations in terrestrial NPP and its application

G. A. Alexandrov, T. Oikawa, Y. Yamagata

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)

Abstract

It is more or less obvious that a process-based net primary production (NPP) model tested for a stand can be applied over a global grid, but doing so, we face the problem - how to calibrate it at this scale. In this paper we demonstrate a scheme for such calibration with a process-based NPP model. First, we suggest that model parameters should be derived from a freely accessible database of NPP measurements. Then, we reduce the number of undefined model parameters to a single lumped parameter (SLP) and find its value for each database entry. Next, considering SLP as some characteristic of vegetation, we formulate an empirical model linking SLP and climate. And finally, we globalize the process-based model in hand by assigning SLP value to the nodes of geographical grid proceeding from the global fields of climatic variables.

Original languageEnglish
Pages (from-to)293-306
Number of pages14
JournalEcological Modelling
Volume148
Issue number3
DOIs
Publication statusPublished - 2002 Mar 1
Externally publishedYes

Keywords

  • Model calibration
  • Net primary production
  • Plant responses to environment

ASJC Scopus subject areas

  • Ecological Modelling

Fingerprint

Dive into the research topics of 'The scheme for globalization of a process-based model explaining gradations in terrestrial NPP and its application'. Together they form a unique fingerprint.

Cite this