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Lars Eklundh

Professor

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EUROSPEC: at the interface between remote-sensing and ecosystem CO2 flux measurements in Europe

Author

  • A. Porcar-Castell
  • A. Mac Arthur
  • M. Rossini
  • Lars Eklundh
  • J. Pacheco-Labrador
  • K. Anderson
  • M. Balzarolo
  • M.P. Martín
  • Hongxiao Jin
  • E. Tomelleri
  • S. Cerasoli
  • K. Sakowska
  • A. Hueni
  • T. Julitta
  • C. J. Nichol
  • L. Vescovo

Summary, in English

Resolving the spatial and temporal dynamics of gross primary productivity (GPP) of terrestrial ecosystems across different scales remains a challenge. Remote sensing is regarded as the solution to upscale point observations conducted at the ecosystem level, using the eddy covariance (EC) technique, to the landscape and global levels. In addition to traditional vegetation indices, the photochemical reflectance index (PRI) and the emission of solar-induced chlorophyll fluorescence (SIF), now measurable from space, provide a new range of opportunities to monitor the global carbon cycle using remote sensing. However, the scale mismatch between EC observations and the much coarser satellite-derived data complicates the integration of the two sources of data. The solution is to establish a network of in situ spectral measurements that can act as bridge between EC measurements and remote sensing data. In situ spectral measurements have been already conducted for many years at EC sites, but using variable instrumentation, setups, and measurement standards. In Europe in particular, in situ spectral measurements remain highly heterogeneous. The goal of EUROSPEC Cost Action ES0930 was to promote the development of common measuring protocols and new instruments towards establishing best practices and standardization of in situ spectral measurements. In this review we describe the background and main tradeoffs of in situ spectral measurements, review the main results of EUROSPEC Cost Action, and discuss the future challenges and opportunities of in situ spectral measurements for improved estimation of local and global carbon cycle.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • MERGE: ModElling the Regional and Global Earth system
  • BECC: Biodiversity and Ecosystem services in a Changing Climate

Publishing year

2015

Language

English

Pages

6103-6124

Publication/Series

Biogeosciences

Volume

12

Issue

20

Document type

Journal article review

Publisher

Copernicus GmbH

Topic

  • Environmental Sciences

Status

Published

Project

  • NordSpec - a research network for spectral data collection

Research group

  • remote sensing

ISBN/ISSN/Other

  • ISSN: 1726-4189