全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

Aerosol Optical Depth Pathways and Sources; Lake Victoria Basin*

DOI: 10.4236/oalib.1104393, PP. 1-11

Subject Areas: Environmental Sciences, Atmospheric Sciences

Keywords: Aerosols, Cluster Analysis, MAM, JJA, Trajectories, ICIPE Mbita and AERONET, LBR

Full-Text   Cite this paper   Add to My Lib

Abstract

The air mass back-trajectory clustering analysis was combined with Aerosol Optical Depth (AOD) of fine mode, coarse mode and fine mode fraction in order to evaluate the long-range effects of transportation patterns of trajectories for the ground based station at ICIPE Mbita which is located on longitude and latitude of 34.2°E, 0.417°S respectively at 1125 meters above sea level. In order to get a clear picture of the source and sinking points of aerosols, monthly means of a 72 hour backward trajectories data ranging from 2013 to 2015 were used in categorizing the cluster into five classes. Most of the air trajectories analysis from this paper shows evidence that the major sources and pathways for the aerosols into the receptor station commonly originate from as far as the Arabian deserts and Sahara deserts from the Northern Hemisphere and Indian Ocean and central Africa in the Southern Hemisphere.

Cite this paper

Zachary, M. , Yin, L. and Zacharia, M. (2018). Aerosol Optical Depth Pathways and Sources; Lake Victoria Basin*. Open Access Library Journal, 5, e4393. doi: http://dx.doi.org/10.4236/oalib.1104393.

References

[1]  Levy, R.C., Remer, L.A., Mattoo, S., Vermote, E.F. and Kaufman, Y.J. (2007) Second-Generation Operational Algorithm: Retrieval of Aerosol Properties over Land from Inversion of Moderate Resolution Imaging Spectroradiometer Spectral Reflectance. Journal of Geophysical Research Atmospheres, 112, 1-21.
[2]  Stohl, A. (1998) Computation, Accuracy and Applications of Trajectories—A Review and Bibliography. Atmospheric Environment, 32, 947-966.
https://doi.org/10.1016/S1352-2310(97)00457-3
[3]  Draxler, R. (1998) An Overview of the HYSPLIT Modeling System for Trajectory and Dispersion Applications.
[4]  Draxler, R.R. and Hess, G.D. (1998) An Overview of the HYSPLIT_4 Modelling System for Trajectories. Australian Meteorological Magazine, 47, 295-308.
[5]  Kenya National Bureau of Statistics (KNBS), ORC Macro (2010) Kenya Demographic and Health Survey 2008-09. Health (San Francisco), 1-314.
[6]  Herrero, M., Ringler, C., Steeg, J. Van De, Koo, J. and Notenbaert, A. (2010) Climate Variability and Climate Change and Their Impacts on Kenya’s Agricultural Sector. ILRI, Nairobi. Kenya, 1-56.
[7]  Mugalavai, E.M., Kipkorir, E.C., Raes, D. and Rao, M.S. (2008) Analysis of Rainfall Onset, Cessation and Length of Growing Season for Western Kenya. Agricultural and Forest Meteorology, 148, 1123-1135.
https://doi.org/10.1016/j.agrformet.2008.02.013
[8]  Sagero, P.O., Shisanya, C., Ongoma, V. and Shilenje, Z.W. (2016) Numerical Simulation of Rainfall and Temperature over Kenya Using Weather Research and Forecasting-Environmental Modelling System. International Scientific Journal Geographica Pannonica, 20, 51-61.
[9]  Gatebe, C.K., King, M.D., Tsay, S.C., Ji, Q., Thomas Arnold, G. and Li, J.Y. (2001) Sensitivity of Off-Nadir Zenith Angles to Correlation between Visible and Near-Infrared Reflectance for Use in Remote Sensing of Aerosol over Land. IEEE Transactions on Geoscience and Remote Sensing, 39, 805-819.
https://doi.org/10.1109/36.917901
[10]  Makokha, J.W. and Muthama, J.N. (2017) Aerosol Optical Depth and Precipitation Rate Projections over East Africa Utilizing Self Organizing Map The International Journal of Science & Technoledge, 5, 166-175.
[11]  Boiyo, R., Kumar, K.R. and Zhao, T. (2017) Statistical Intercomparison and Validation of Multisensory Aerosol Optical Depth Retrievals over Three AERONET Sites in Kenya, East Africa. Atmospheric Research, 197, 277-288.
https://doi.org/10.1016/j.atmosres.2017.07.012

Full-Text


comments powered by Disqus

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133

WeChat 1538708413