Uncertainties in climate responses to past land cover change: First results from the LUCID intercomparison study

Pitman, A. J.; de Noblet-Ducoudré, N.; Cruz, F. T.; Davin, E. L.; Bonan, G. B.; Brovkin, V.; Claussen, M.; Delire, C.; Ganzeveld, L.; Gayler, V.; van den Hurk, B. J. J. M.; Lawrence, P. J.; van der Molen, M. K.; Müller, C.; Reick, C. H.; Seneviratne, S. I.; Strengers, B. J.; Voldoire, A. (2009). Uncertainties in climate responses to past land cover change: First results from the LUCID intercomparison study. Geophysical Research Letters, 36(14) American Geophysical Union 10.1029/2009GL039076

[img]
Preview
Text
Geophysical_Research_Letters_-_2009_-_Pitman_-_Uncertainties_in_climate_responses_to_past_land_cover_change_First_results.pdf - Published Version
Available under License Publisher holds Copyright.

Download (1MB) | Preview

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.

Item Type:

Journal Article (Original Article)

UniBE Contributor:

Davin, Édouard Léopold

ISSN:

0094-8276

Publisher:

American Geophysical Union

Language:

English

Submitter:

�douard Léopold Davin

Date Deposited:

26 Apr 2022 10:11

Last Modified:

05 Dec 2022 16:14

Publisher DOI:

10.1029/2009GL039076

BORIS DOI:

10.48350/167155

URI:

https://boris.unibe.ch/id/eprint/167155

Actions (login required)

Edit item Edit item
Provide Feedback