TY - JOUR
T1 - Uncertainties in climate responses to past land cover change
T2 - First results from the LUCID intercomparison study
AU - Pitman, A. J.
AU - De Noblet-Ducoudré, N.
AU - Cruz, F. T.
AU - Davin, E. L.
AU - Bonan, G. B.
AU - Brovkin, V.
AU - Claussen, M.
AU - Delire, C.
AU - Ganzeveld, L.
AU - Gayler, V.
AU - Van Den Hurk, B. J J M
AU - Lawrence, P. J.
AU - Van Der Molen, M. K.
AU - Müller, C.
AU - Reick, C. H.
AU - Seneviratne, S. I.
AU - Strengen, B. J.
AU - Voldoire, A.
PY - 2009/7/28
Y1 - 2009/7/28
N2 - Seven climate models were used to explore the biogeophysical impacts of human-induced land cover change (LCC) at regional and global scales. The imposed LCC led to statistically significant decreases in the northern hemisphere summer latent heat flux in three models, and increases in three models. Five models simulated statistically significant cooling in summer in near-surface temperature over regions of LCC and one simulated warming. There were few significant changes in precipitation. Our results show no common remote impacts of LCC. The lack of consistency among the seven models was due to: 1) the implementation of LCC despite agreed maps of agricultural land, 2) the representation of crop phenology, 3) the parameterisation of albedo, and 4) the representation of evapotranspiration for different land cover types. This study highlights a dilemma: LCC is regionally significant, but it is not feasible to impose a common LCC across multiple models for the next IPCC assessment.
AB - Seven climate models were used to explore the biogeophysical impacts of human-induced land cover change (LCC) at regional and global scales. The imposed LCC led to statistically significant decreases in the northern hemisphere summer latent heat flux in three models, and increases in three models. Five models simulated statistically significant cooling in summer in near-surface temperature over regions of LCC and one simulated warming. There were few significant changes in precipitation. Our results show no common remote impacts of LCC. The lack of consistency among the seven models was due to: 1) the implementation of LCC despite agreed maps of agricultural land, 2) the representation of crop phenology, 3) the parameterisation of albedo, and 4) the representation of evapotranspiration for different land cover types. This study highlights a dilemma: LCC is regionally significant, but it is not feasible to impose a common LCC across multiple models for the next IPCC assessment.
UR - http://www.scopus.com/inward/record.url?scp=70349592923&partnerID=8YFLogxK
U2 - 10.1029/2009GL039076
DO - 10.1029/2009GL039076
M3 - Article
AN - SCOPUS:70349592923
SN - 0094-8276
VL - 36
JO - Geophysical Research Letters
JF - Geophysical Research Letters
IS - 14
M1 - L14814
ER -