Program and Agenda

Abstract

MODELLING LAKE PRIMARY PRODUCTION BASED ON SATELLITE DATA

Lakes are the hot spots in the global carbon cycle, and therefore are key elements as climate change regulators. However, too little attention has been paid to the spatial and temporal variability of productivity in inland waters. Data on seasonal and spatial variations of primary production is needed to estimate the ecological state of lakes. Traditional in situ sampling approaches cannot provide this kind of data over large lakes. Solution can be modelling combined with satellite data, so that the inputs for the model can be estimated from MERIS data. The objective of this study is to evaluate and validate how well a lake primary production model based on satellite products performs. For that purpose we compare modelled estimates with in situ measurements of primary production in two large, shallow and eutrophic Estonian lakes. Based on the result we can study temporal and spatial changes in the ecological state of lakes. Using satellite data as input in primary production models allows to monitor the state of lakes in space and time and gives a new perspective for lake primary production studies.

Authors

Kauer, T., Estonian Marine Institute, University of Tartu, Estonia, kauer@ut.ee

Kutser, T., Estonian Marine Institute, University of Tartu, Estonia, tiit.kutser@sea.ee

Arst, H., Estonian Marine Institute, University of Tartu, Estonia, helgi.arst@ut.ee

Nõges, T., Estonian University of Life Sciences, Estonia, tiina.noges@emu.ee

Details

Oral presentation

Session #:042
Date: 2/26/2014
Time: 08:00
Location: 313 C

Presentation is given by student: No