Total Column Ozone, Precipitable Water Content and Aerosol Optical Thickness Over Atigre Village, a Tropical Station: First Observations

Total Column Ozone, Precipitable Water Content and Aerosol Optical Thickness Over Atigre Village, a Tropical Station: First Observations

In this paper, we report first-time observations of total column ozone (TCO), aerosol optical thickness (AOT) and precipitable water content (PWC) at five different wavelengths using compact, handheld, multichannel sun photometer (Microtops II ozonometer) at Atigre village (16.74°N latitude, 74.37°E...

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Bibliographic Details
Published in:MĀPAN : journal of Metrology Society of India Vol. 34; no. 4; pp. 451 - 463
Main Authors: Nade, Dada P., Potdar, Swapnil S., Pawar, Rani P., Mane, Santosh T., Chandra, S., Taori, A., Siingh, Devendraa
Format: Journal Article
Language:English
Published: New Delhi Springer India 01-12-2019
Springer Nature B.V
Subjects:
Data collection
Diurnal variations
Electromagnetic wave filters
Mathematical and Computational Physics
Mathematical Methods in Physics
Measurement Science and Instrumentation
Moisture content
Monsoons
Numerical and Computational Physics
Optical filters
Optical thickness
Original Paper
Ozone
Physics
Physics and Astronomy
Sea level
Simulation
Theoretical
Wavelengths
Wind
Precipitable water vapor (PWC)
Microtops II ozonometer
Aerosol optical thickness (AOT)
Total column ozone (TCO)
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Summary:In this paper, we report first-time observations of total column ozone (TCO), aerosol optical thickness (AOT) and precipitable water content (PWC) at five different wavelengths using compact, handheld, multichannel sun photometer (Microtops II ozonometer) at Atigre village (16.74°N latitude, 74.37°E longitude, 604 ms altitude above sea level). The three optical filters at wavelengths 305 nm, 312 nm and 320 nm are used to detect the TCO, while two optical filters 936 nm and 1020 nm are used to detect the PWC and AOT, respectively. We have been collecting data from September 1, 2017, and 122 days are selected from September 1, 2017, to December 31, 2017, to present as first observations of TCO, AOD and PWC. The mean values of TCO, AOT and PWC are found to be 261.2 (± 9.22) DU, 0.25 (± 0.04) and 1.98 (± 0.79) cm, respectively, during this period. The TCO measurements taken by the Microtops II ozonometer are compared with the ozone monitoring instrument satellite data over Atigre. We found that PWC and AOT values are negatively correlated (− 0.54) during monsoon season, while they show positive correlation (0.63) during other seasons with 90% significance level. The diurnal variation of TCO, PWC and AOT differ in monsoon and the post-monsoon season.
ISSN:0970-3950
0974-9853
DOI:10.1007/s12647-019-00314-y