Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1088/1748-9326/ab2b4e |
Biomass heat storage dampens diurnal temperature variations in forests | |
Meier, Ronny1; Davin, Edouard L.1; Swenson, Sean C.2; Lawrence, David M.2; Schwaab, Jonas1 | |
2019-08-01 | |
发表期刊 | ENVIRONMENTAL RESEARCH LETTERS |
ISSN | 1748-9326 |
出版年 | 2019 |
卷号 | 14期号:8 |
文章类型 | Article |
语种 | 英语 |
国家 | Switzerland; USA |
英文摘要 | Observational evidence suggests that compared to non-forested areas, forests have a cooling effect on daytime land surface temperature (LST) and a warming effect on nighttime LST in many regions of the world, thus implying that forests dampen the diurnal temperature range. This feature is not captured by current climate models. Using the Community Land Model 5.0 (CLM5.0), we show that this diurnal behavior can be captured when accounting for biomass heat storage (BHS). The nighttime release of energy absorbed by the vegetation biomass during the day increases both nighttime LST and ambient air temperature in forested regions by more than 1 K. The daytime cooling is weaker than the nighttime warming effect, because the energy uptake by the biomass is compensated by a reduction in the turbulent heat fluxes during day. This diurnal asymmetry of the temperature response to BHS leads to a warming of daily mean temperatures, which is amplified during boreal summer warm extremes. Compared to MODIS, CLM5.0 overestimates the diurnal LST range over forested areas. The inclusion of BHS reduces this bias due to its dampening effect on diurnal LST variations. Further, BHS attenuates the negative bias in the nighttime LST difference of forest minus grassland and cropland, when compared to MODIS observations. These results indicate that it is essential to consider BHS when examining the influence of forests on diurnal temperature variations. BHS should thus be included in land surface models used to assess the climatic consequences of land use changes such as deforestation or afforestation. |
英文关键词 | biomass heat storage land use change land surface modeling |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000490599900001 |
WOS关键词 | SURFACE-ENERGY BALANCE ; LAND-COVER ; EARTH SYSTEM ; CLIMATE ; CANOPY ; MODEL ; IMPACTS ; DEFORESTATION ; FLUXES ; BUDGET |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185609 |
专题 | 气候变化 |
作者单位 | 1.Swiss Fed Inst Technol, Inst Atmospher & Climate Sci, Univ Str 16, CH-8092 Zurich, Switzerland; 2.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Meier, Ronny,Davin, Edouard L.,Swenson, Sean C.,et al. Biomass heat storage dampens diurnal temperature variations in forests[J]. ENVIRONMENTAL RESEARCH LETTERS,2019,14(8). |
APA | Meier, Ronny,Davin, Edouard L.,Swenson, Sean C.,Lawrence, David M.,&Schwaab, Jonas.(2019).Biomass heat storage dampens diurnal temperature variations in forests.ENVIRONMENTAL RESEARCH LETTERS,14(8). |
MLA | Meier, Ronny,et al."Biomass heat storage dampens diurnal temperature variations in forests".ENVIRONMENTAL RESEARCH LETTERS 14.8(2019). |
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