Limitations of WRF land surface models for simulating land use and land cover change in Sub-Saharan Africa and development of an improved model (CLM-AF v. 1.0)

天气研究与预报模式 土地覆盖 环境科学 蒸散量 反照率(炼金术) 气候学 降水 卫星 土地利用 气候模式 气候变化 气象学 遥感 大气科学 地理 地质学 艺术 生态学 海洋学 土木工程 航空航天工程 表演艺术 工程类 生物 艺术史
作者
Timothy Glotfelty,Diana Ramírez-Mejía,Jared H. Bowden,Adrián Ghilardi,J. Jason West
标识
DOI:10.5194/gmd-2020-193
摘要

Abstract. Land use and land cover change (LULCC) impacts local and regional climates through various biogeophysical processes. Accurate representation of land surface parameters in land surface models (LSMs) is essential to accurately predict these LULCC-induced climate signals. In this work, we test the applicability of the default Noah, Noah-MP, and CLM LSMs in the Weather Research and Forecasting Model (WRF) over Sub-Saharan Africa. We find that the default WRF LSMs do not accurately represent surface albedo, leaf area index, and surface roughness in this region due to various flawed assumptions, including the treatment of the MODIS woody savanna LULC category as closed shrubland. Consequently, we developed a WRF CLM version with more accurate African land surface parameters (CLM-AF), designed such that it can be used to evaluate the influence of LULCC. We evaluate meteorological performance for the default LSMs and CLM-AF against observational datasets, gridded products, and satellite estimates. Further, we conduct LULCC experiments with each LSM to determine if differences in land surface parameters impact the LULCC-induced climate signals. Despite clear deficiencies in surface parameters, all LSMs reasonably capture the spatial pattern and magnitude of near surface temperature and precipitation. However in the LULCC experiments, inaccuracies in the default LSMs result in illogical localized temperature and precipitation climate signals. Differences in thermal climate signals between Noah-MP and CLM-AF indicate that the temperature impacts from LULCC are dependent on the sensitivity of evapotranspiration to LULCC in Sub-Saharan Africa. Errors in land surface parameters indicate that the default WRF LSMs considered are not suitable for LULCC experiments in tropical or Southern Hemisphere regions, and that proficient meteorological model performance can mask these issues. We find CLM-AF to be suitable for use in Sub-Saharan Africa LULCC studies, but more work is needed by the WRF community to improve its applicability to other tropical and Southern Hemisphere climates.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
hxl发布了新的文献求助10
刚刚
今后应助美好的千凝采纳,获得10
刚刚
刚刚
传奇3应助无极采纳,获得10
刚刚
HAPPEN完成签到,获得积分10
刚刚
djbj2022发布了新的文献求助10
刚刚
SciGPT应助微笑可乐采纳,获得10
刚刚
笑点低的泥猴桃完成签到,获得积分10
1秒前
1秒前
小陈完成签到,获得积分10
1秒前
哭泣的如霜完成签到,获得积分10
1秒前
1秒前
无辜的惜寒完成签到,获得积分10
1秒前
2秒前
华桦子发布了新的文献求助10
2秒前
3秒前
3秒前
3秒前
大明完成签到,获得积分10
3秒前
linkman发布了新的文献求助30
3秒前
艽野完成签到,获得积分10
4秒前
Jene发布了新的文献求助10
4秒前
4秒前
Twinkle完成签到,获得积分10
4秒前
酷波er应助啊娴子采纳,获得10
4秒前
5秒前
与梦随行2011完成签到,获得积分10
5秒前
5秒前
龙眼完成签到,获得积分10
6秒前
自由的雨南完成签到 ,获得积分10
7秒前
bkagyin应助小陈采纳,获得10
7秒前
8秒前
8秒前
11111发布了新的文献求助10
8秒前
俊逸如风完成签到 ,获得积分10
8秒前
小蘑菇应助体贴岩采纳,获得10
8秒前
啊哦完成签到 ,获得积分10
9秒前
9秒前
柒月小鱼完成签到 ,获得积分10
9秒前
Akim应助迷人乐荷采纳,获得10
9秒前
高分求助中
A new approach to the extrapolation of accelerated life test data 1000
Cognitive Neuroscience: The Biology of the Mind 1000
Technical Brochure TB 814: LPIT applications in HV gas insulated switchgear 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Picture Books with Same-sex Parented Families: Unintentional Censorship 500
Nucleophilic substitution in azasydnone-modified dinitroanisoles 500
不知道标题是什么 500
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3969222
求助须知:如何正确求助?哪些是违规求助? 3514124
关于积分的说明 11171948
捐赠科研通 3249361
什么是DOI,文献DOI怎么找? 1794799
邀请新用户注册赠送积分活动 875431
科研通“疑难数据库(出版商)”最低求助积分说明 804779