Seasonal Variations in the Vertical Structure of Water Vapor Optical Depth in the Lower Troposphere over a Tropical Station

P. Ernest Raj; P.C.S. Devara

doi:10.1007/s00376-997-0062-5

Impact Factor: 5.8

Volume 14 Issue 1

Jan. 1997

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Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1997 > 14(1): 103-110

Seasonal Variations in the Vertical Structure of Water Vapor Optical Depth in the Lower Troposphere over a Tropical Station

1.
Indian Institute of Tropical Meteorology, Pune-411008, India,

doi: 10.1007/s00376-997-0062-5

Abstract
References
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Abstract:
Spatio-temporal variations of water vapor optical depth in the lower troposphere (450-3850 m) over Pune (18o32’N, 73o51’E, 559 m Above Mean Sea Level), India have been studied over a period of five years. The mean ver-tical structure showed that the moisture content is greatest at the lowest level and decreases with increasing altitude, except in the south-west monsoon season (June to September) when an increase upto 950 m has been found. Optical depths are maximum in the monsoon season. The increase from pre-monsoon (March-May) to monsoon season in moisture content on an average is by about 58% in the above altitude range. The temporal variations in surface Rela-tive Humidity and optical depth at 450 m show positive correlation. The amplitude of seasonal oscillation is the larg-est at 1465 m altitude. The time-height cross-sections of water vapor optical depths in the lower troposphere showed a contrast between years of good and bad monsoon.
- Optical depth,
- Precipitable water
References

[1]	P. Ernest Raj, P.C.S. Devara, 1997: Seasonal Variations in the Vertical Structure of Water Vapor Optical Depth in the Lower Troposphere over a Tropical Station, ADVANCES IN ATMOSPHERIC SCIENCES, 14, 425-432. doi: 10.1007/s00376-997-0049-2
[2]	YAO Zhanyu, XU Chenhai, YUAN Jian, LI Wanbiao, ZHU Yuanjing, ZHAO Bolin, 2003: Estimations of Precipitable Water and Its Characteristics during the HUBEX/IOP 1998, ADVANCES IN ATMOSPHERIC SCIENCES, 20, 219-226. doi: 10.1007/s00376-003-0007-6
[3]	MIN Min, WANG Pucai, James R. CAMPBELL, ZONG Xuemei, XIA Junrong, 2011: Cirrus Cloud Macrophysical and Optical Properties over North China from CALIOP Measurements, ADVANCES IN ATMOSPHERIC SCIENCES, 28, 653-664. doi: 10.1007/s00376-010-0049-5
[4]	Ha-Taek KWON, Eui-Hyun JUNG, Gyu-Ho LIM, 2010: A Comparison of GPS- and NWP-derived PW Data over the Korean Peninsula, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 871-882. doi: 10.1007/s00376-009-9069-4
[5]	HUO Juan, LU Daren, 2010: Preliminary Retrieval of Aerosol Optical Depth from All-sky Images, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 421-426. doi: 10.1007/s00376-009-8216-2
[6]	GUO Jianping, XUE Yong, CAO Chunxiang, ZHANG Hao, GUANG Jie, ZHANG Xiaoye, LI Xiaowen, 2009: A Synergic Algorithm for Retrieval of Aerosol Optical Depth over Land, ADVANCES IN ATMOSPHERIC SCIENCES, 26, 973-983. doi: 10.1007/s00376-009-7218-4
[7]	Xuehua FAN, Xiang'ao XIA, Hongbin CHEN, 2018: Can MODIS Detect Trends in Aerosol Optical Depth over Land?, ADVANCES IN ATMOSPHERIC SCIENCES, 35, 135-145. doi: 10.1007/s00376-017-7017-2
[8]	Eun-Han KWON, Jinlong LI, B. J. SOHN, Elisabeth WEISZ, 2012: Use of Total Precipitable Water Classification of A Priori Error and Quality Control in Atmospheric Temperature and Water Vapor Sounding Retrieval, ADVANCES IN ATMOSPHERIC SCIENCES, 29, 263-273. doi: 10.1007/s00376-011-1119-z
[9]	Wang Hongqi, Zhao Gaoxiang, 2002: Parameterization of Longwave Optical Properties for Water Clouds, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 25-34. doi: 10.1007/s00376-002-0031-y
[10]	Wei Chong, Xue Yongkang, Zhu Xiaoming, Zou Shouxiang, 1984: DETERMINATION OF ATMOSPHERIC PRECIPITABLE WATER AND HUMIDITY PROFILES BY A GROUND-BASED 1.35 cm RADIOMETER, ADVANCES IN ATMOSPHERIC SCIENCES, 1, 119-139. doi: 10.1007/BF03187623
[11]	Huang Runheng, Kuo_Nan Liou, 1984: REMOTE SOUNDING OF THE CIRRUS OPTICAL DEPTH AND TEMPERATURE FROM 3.7 AND 11 MICROMETER WINDOWS, ADVANCES IN ATMOSPHERIC SCIENCES, 1, 150-178. doi: 10.1007/BF02678128
[12]	Qiu Jinhuan, 1998: A Method for Spaceborne Synthetic Remote Sensing of Atmospheric Aerosol Optical Depth and Vegetation Reflectance, ADVANCES IN ATMOSPHERIC SCIENCES, 15, 17-30. doi: 10.1007/s00376-998-0014-8
[13]	Qiu Jinhuan, 1989: Theoretical Analysis of Retrieving Atmospheric Columnar Mie Optical Depth from Downward Total Solar Radiative Flux, ADVANCES IN ATMOSPHERIC SCIENCES, 6, 313-324. doi: 10.1007/BF02661537
[14]	DING Jincai, YANG Yinming, YE Qixin, HUANG Yan, MA Xiaoxing, MA Leiming, Y. R. GUO, 2007: Moisture Analysis of a Squall Line Case Based on Precipitable Water Vapor Data from a Ground-Based GPS Network in the Yangtze River Delta, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 409-420. doi: 10.1007/s00376-007-0409-y
[15]	Min ZHAO, Tie DAI, Hao WANG, Qing BAO, Yimin LIU, Hua ZHANG, Guangyu SHI, 2022: Simulating Aerosol Optical Depth and Direct Radiative Effects over the Tibetan Plateau with a High-Resolution CAS FGOALS-f3 Model, ADVANCES IN ATMOSPHERIC SCIENCES, 39, 2137-2155. doi: 10.1007/s00376-022-1424-8
[16]	ZHANG Meng, NI Yunqi, ZHANG Fuqing, 2007: Variational Assimilation of GPS Precipitable Water Vapor and Hourly Rainfall Observations for a Meso- Scale Heavy Precipitation Event During the 2002 Mei-Yu Season, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 509-526. doi: 10.1007/s00376-007-0509-8
[17]	HU Liang, Song YANG, LI Yaodong, GAO Shouting, 2010: Diurnal Variability of Precipitation Depth Over the Tibetan Plateau and its Surrounding Regions, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 115-122. doi: 10.1007/s00376-009-8193-5
[18]	SUN Jianning, JIANG Weimei, CHEN Ziyun, YUAN Renmin, 2005: Parameterization for the Depth of the Entrainment Zone above the Convectively Mixed Layer, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 114-121. doi: 10.1007/BF02930874
[19]	Xiao Jingwei, Lu Naiping, Zhou Mingyu, 1985: APPLICATION OF SODAR SOUNDING TO ATMOSPHERIC DISPERSION-MIXING DEPTH AND CONCENTRATION AT THE GROUND, ADVANCES IN ATMOSPHERIC SCIENCES, 2, 63-71. doi: 10.1007/BF03179738
[20]	Huang Runkeng, Wei Chong, 1986: EXPERIMENTAL INVESTIGATION ON REAL-TIME REMOTE SENSING OF LAYERED ATMOSPHERIC PRECIPITABLE BY A GROUND-BASED RADIOMETER OF 1.35 cm WAVELENGTH, ADVANCES IN ATMOSPHERIC SCIENCES, 3, 86-93. doi: 10.1007/BF02680047

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Manuscript History

Manuscript received: 10 January 1997

Manuscript revised: 10 January 1997

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Seasonal Variations in the Vertical Structure of Water Vapor Optical Depth in the Lower Troposphere over a Tropical Station

1. Indian Institute of Tropical Meteorology, Pune-411008, India,

Manuscript received: 1997-01-10
Manuscript revised: 1997-01-10

Abstract: Spatio-temporal variations of water vapor optical depth in the lower troposphere (450-3850 m) over Pune (18o32’N, 73o51’E, 559 m Above Mean Sea Level), India have been studied over a period of five years. The mean ver-tical structure showed that the moisture content is greatest at the lowest level and decreases with increasing altitude, except in the south-west monsoon season (June to September) when an increase upto 950 m has been found. Optical depths are maximum in the monsoon season. The increase from pre-monsoon (March-May) to monsoon season in moisture content on an average is by about 58% in the above altitude range. The temporal variations in surface Rela-tive Humidity and optical depth at 450 m show positive correlation. The amplitude of seasonal oscillation is the larg-est at 1465 m altitude. The time-height cross-sections of water vapor optical depths in the lower troposphere showed a contrast between years of good and bad monsoon.

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