globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.atmosres.2018.07.021
Scopus记录号: 2-s2.0-85050736572
论文题名:
RegCM4 simulation with AVHRR land use data towards temperature and precipitation climatology over Indian region
作者: Nayak S.; Mandal M.; Maity S.
刊名: Atmospheric Research
ISSN: 1698095
出版年: 2018
卷: 214
起始页码: 163
结束页码: 173
语种: 英语
英文关键词: AVHRR land use data ; Indian regional climate ; RegCM4
Scopus关键词: Advanced very high resolution radiometers (AVHRR) ; Atmospheric temperature ; Climate models ; Climatology ; Surface properties ; AVHRR land use data ; Precipitation climatology ; RegCM4 ; Regional climate ; Regional climate modeling systems ; Regional climate simulation ; Temporal and spatial correlation ; United states geological surveys ; Land use ; AVHRR ; climate modeling ; climatology ; computer simulation ; land use change ; precipitation (climatology) ; regional climate ; satellite data ; satellite imagery ; temperature profile ; India
英文摘要: The Regional Climate Modeling system (RegCM) is being widely used for climate simulation at seasonal to multi-decadal scales over many regions across the world in recent decades. In this study, we conducted a 10 years simulation using RegCM4 by replacing the United States Geological Survey (USGS) land use data (the default land use data in RegCM) with the land use data from Advanced Very High Resolution Radiometer (AVHRR) satellite images to test the usefulness of AVHRR land use data in RegCM. We focused on the 10 years (1991–2000) of temperature and precipitation climatologies over Indian region from the model with AVHRR land use data and that of with USGS land use data. The results are compared with Climate Research Unit (CRU) observation through the model biases, standard error, the temporal and spatial correlation between the model and observation in two results (USGS vs. AVHRR). Results indicate that the annual and seasonal climatology of surface temperature and precipitation in both simulations (i.e. with USGS and AVHRR) are close to each other over Indian region. However, the simulation with AVHRR land use data improved up to ~2 °C in temperature field and ~1 mm/d in precipitation field over few regions. The inter-annual variability of surface temperature and precipitation in both simulations are also found almost same. Based on the results of this study, we conclude that the AVHRR land use data can be used in RegCM to conduct regional climate simulations over Indian region. Additionally this study suggests that, as AVHRR dataset is available for longer period in 15 days interval, so the impact of land use change on different climatic variables during a period can be studied by using RegCM. © 2018 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/108758
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Centre for Oceans, Rivers, Atmosphere and Land Sciences, Indian Institute of Technology Kharagpur; West Bengal721302, India

Recommended Citation:
Nayak S.,Mandal M.,Maity S.. RegCM4 simulation with AVHRR land use data towards temperature and precipitation climatology over Indian region[J]. Atmospheric Research,2018-01-01,214
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