T
T. T. van Leeuwen
Researcher at Utrecht University
Publications - 37
Citations - 3331
T. T. van Leeuwen is an academic researcher from Utrecht University. The author has contributed to research in topics: Computer science & Engineering. The author has an hindex of 14, co-authored 27 publications receiving 2998 citations. Previous affiliations of T. T. van Leeuwen include VU University Amsterdam & Netherlands Institute for Space Research.
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Journal ArticleDOI
Global fire emissions and the contribution of deforestation, savanna, forest, agricultural, and peat fires (1997-2009)
G. R. van der Werf,James T. Randerson,Louis Giglio,Louis Giglio,G. J. Collatz,Mingquan Mu,Prasad S. Kasibhatla,Douglas C. Morton,Ruth DeFries,Yufang Jin,T. T. van Leeuwen +10 more
TL;DR: In this paper, the authors used a revised version of the Carnegie-Ames-Stanford-Approach (CASA) biogeochemical model and improved satellite-derived estimates of area burned, fire activity, and plant productivity to calculate fire emissions for the 1997-2009 period on a 0.5° spatial resolution with a monthly time step.
Journal ArticleDOI
Biomass burning fuel consumption rates: a field measurement database
T. T. van Leeuwen,T. T. van Leeuwen,G. R. van der Werf,Ary A. Hoffmann,Rob Detmers,Rob Detmers,G. Rucker,Nancy H. F. French,Sally Archibald,Sally Archibald,João Andrade de Carvalho,Garry D. Cook,W. J. de Groot,Christelle Hély,Eric S. Kasischke,Silvia Kloster,Jessica L. McCarty,M.L. Pettinari,Patrice Savadogo,Ernesto Alvarado,Luigi Boschetti,Solichin Manuri,C. P. Meyer,Florian Siegert,L.A. Trollope,W.S.W. Trollope +25 more
TL;DR: The workshop that led to this paper was sponsored by the EU FP7 COCOS project as discussed by the authors, and the authors acknowledge funding from the European FP7 MACC-II project (contract number 218793) and the EUFP7 GeoCarbon project (Contract number 283080).
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A penalty method for PDE-constrained optimization in inverse problems
TL;DR: In this article, a quadratic penalty formulation of the constrained optimization problem is proposed to solve the inverse and parameter estimation problems arising from inverse problems, where the objective is to find a stationary point of the Lagrangian and update the parameters and the state variables simultaneously.
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Spatial and temporal variability in the ratio of trace gases emitted from biomass burning
TL;DR: In this paper, the authors used the available body of EF literature in combination with satellite-derived information on vegetation characteristics and climatic conditions to better understand the spatio-temporal variability in EFs.
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Modelling the role of fires in the terrestrial carbon balance by incorporating SPITFIRE into the global vegetation model ORCHIDEE – Part 2: Carbon emissions and the role of fires in the global carbon balance
TL;DR: In this paper, the role of fires in terrestrial terrestrial carbon balance was modelled using the ORCHIDEE global vegetation model equipped with the SPITFIRE model, and it was shown that fire-induced land sink reduction is significantly correlated with climate variability, with larger sink reduction occurring in warm and dry years, in particular during El Nino events.