Spatial Analysis of Environmental Hazards

Spatial Analysis of Environmental Hazards

Geographical-Synoptic Characteristics of Arabian Anticyclone in the Heavy Precipitation Days on Iran

Authors
Mostafa karimi 1
Norouzi Fahimeh 1
Mahnaz Jafari 2
Khoshakhlagh Faramarz 1
Shamsipour AliAkbar 1
1 Department of Physical Geography, Faculty of Geography, University of Tehran
2 -
Abstract
Vulnerability assessment of Miangaran wetland ecosystem



To support the proper management of ecosystems, vulnerability analysis of ecosystems is very important. Vulnerability analysis of ecosystems provides information about weaknesses and capacity of the studied ecosystem for recovery after damage. Considering the degradation status of Miangaran wetland, vulnerability evaluation of this wetland is one of the most important management methods in the region. For this purpose, in this study, after identifying and evaluating the threatening factors of Miangaran wetland, these factors were scored using evaluation matrices. Then, the interaction between these values ​​and threatening factors was examined and the vulnerability of wetland values ​​was obtained by multiplying the scores of all studied factors. Finally, management solutions were presented to deal with the most important threatening factors. According to the results, the most vulnerability is to the hydrological and ecological values ​​of the wetland. The highest effects of threats on the ecological value are also on the birds of Miangaran wetland. The results of the evaluation of Miangaran Wetland show that this wetland has a high potential for ecosystem functions of the wetland. These functions have been neglected in the planning and managing of wetlands at the local, regional and national levels. As a result, ecosystem-based management is suggested as the best management approach. The management in these areas should take action to prevent the vulnerability of Miangaran wetland. Also, the vulnerability evaluation method used in this study can provide a good understanding of the relationship between wetland functions and the resulting services for the management of the ecosystem of Miangaran Wetland.

Key words: Miangaran wetland, ecosystem management, vulnerability assessment
Keywords
Heavy precipitation
Arabian Anticyclone
subtropical high pressure
synoptic systems
Southwest Asia
Alizadeh. C. O and M. S. Najafi. 2018. Extreme weather events in Iran under a changing climate. Climate Dyn, 50: 249-260. https://doi.org/10.1007/s00382-017-3602-4
Almazroui, M and et al. 2016. Climatology of 500-Hpa Mediterranean storms associated with Saudi Arabia wet season precipitation. Climate Dyn, 47: 3029-3042. https://doi.org/10.1007/s00382-016-3011-0
Chang, C.-P.; M.-M. Lu. 2012. Intraseasonal Predictability of Siberian High and East Asian Winter Monsoon and Its Interdecadal Variability. Journal of Climate, 25: 1773-1778. https://doi.org/10.1175/JCLI-D-11-00500.1
Davis, R.E.; B.P. Hayden, D.A. Gay, W.L. Phillips, and G.V. Jones. 1997. The North Atlantic Subtropical Anticycline. Journal of Climate, 10: 728-744. https://doi.org/10.1175/1520-0442(1997)0102.0.CO;2
Ghanghermeh, A.A.; Gh.R. Roshan, and E. Shahkooeei. 2015. Evaluation of The Efect of Siberia’s High Pressure Extension on Daily Minimum Temperature Changes In Iran. Modeling Earth Systems and Environment, 1: 1-15. https://doi.org/10.1007/s40808-015-0020-7
Ghavidel, R.Y. and F. Jafari. H. 2020. Synoptic analysis of unexampled super-heavy rainfall on April 1, 2019 in west of Iran. Natural Hazards, 104: 1567-1580. https://doi.org/10.1007/s11069-020-04232-0
Iqbal, M.J.; S.M.F. Riaz, and B.M. Ghauri. 2012. Impact of Siberian High on rainfall variability over Northern part of Indo-Pak region. Arabian Journal of Geosciences, 3087-3092. DOI 10.1007/s12517-012-0598-2
Lashkari, H.; Z. Mohammadi. 2018. Study on the role of annual movements of Arabian subtropical high pressure in the late start of precipitation in southern and southwestern Iran. Theoretical and Applied Climatology, 137: 2069–2076. https://doi.org/10.1007/s00704-018-2716-x
Lashkari, H.; M. Jafari. 2021. The role of spatial displacement of Arabian subtropical high pressure in the annual displacement of the ITCZ in East Africa. Theoretical and Applied Climatology, 143: 1543–1555. 10.1007/s00704-020-03475-y
Rashid, S.; M.J. Iqbal, and M.A. Hussain. 2012. Impact of North-South Shift of Azores High on Summer Precipitation over North West Europe. International Journal of Geosciences, 3: 992-999. 10.4236/ijg.2012.325099
Raziei, T.; A. Mofidi, J.A. Santos, and I. Bordi. 2012. Spatial patterns and regimes of daily precipitation in Iran in relation to large-scale atmospheric circulation. International Journal of Climatology, 32: 1226-1237. 10.1002/joc.2347
Santos, J.A.; J. Corte-Real, and S.M. Leite. 2005. Weather Regimes and Their Connection to the Winter Rainfall in Portugal. International Journal of Climatology, 25: 33-50. https://doi.org/10.1002/joc.1101
Wu, B.; J. Wang. 2002. Winter Arctic Oscillation, Siberian High and East Asian Winter Monsoon. Geophysical Research Letters, 29: 3-1-3-4. https://doi.org/10.1029/2002GL015373
Zarrin, A.; H. Ghaemi, M. Azadi, and M. Farajzadeh. 2010. The Spatial Pattern of Summertime Subtropical Anticyclones over Asia and Africa: A Climatology Review. International Journal of Climatology, 30: 159-173. https://doi.org/10.1002/joc.1879
Spatial Analysis of Environmental Hazards
Volume 9, Issue 1 - Serial Number 33
Spring 2022
Pages 151-168