بررسی مورفولوژی تپه های ماسه ای و انطباق آن با داده های باد در منطقه ریگ زرین

نوع مقاله : مقاله پژوهشی

نویسندگان

1 استادیار گروه جغرافیا، دانشگاه یزد، ایران

2 استاد گروه جغرافیا، دانشگاه یزد، ایران

3 کارشناس ارشد ژئومورفولوژی، گروه جغرافیا، دانشگاه یزد، ایران

چکیده

هدف از این پژوهش، بررسی مورفولوژی تپه­های ماسه­ای واقع در ریگ زرین در شمال­ شرق شهر یزد و انطباق آن با داده­های باد منطقه است. برای انجام این پژوهش، پس از ترسیم نقشه انواع اشکال تپه­های ماسه­ای، مورفولوژی آن‌ها با جهت باد غالب ایستگاه‌های پیرامون ریگ تطبیق داده ­شد. نتایج نشان داد که تپه­­های ریگ زرین، مورفولوژی متنوعی داشته و بیشتر انواع تپه­ها شامل تپه­های ساده، سیف، برخان، هرم، تپه­های مرکب و پیچیده را شامل می­شود. تنوع و پیچیدگی این تپه­ها نشان­دهنده تغییرپذیری شدید بادها به شکل فصلی، سالانه و دوره­ای است و با داده­های باد هیچ­کدام از ایستگاه‌های پیرامون ریگ مطابقت ندارد. درواقع، به دلیل اختلاف ارتفاع کویرهای ایران مرکزی با مناطق کوهستانی بالادست، مناطق کویری ایران اغلب به‌عنوان مراکز کم­فشار حرارتی در سطح زمین عمل می­کنند. تجمع حجم زیادی از ماسه در بخش جنوب شرقی ریگ و شکل­گیری تپه­های ستاره­ای مرتفع در آن نشان‌دهنده دخالت بادهای غالب شمال غربی در فصل گرم، بادهای فرعی جنوب­شرقی منطقه و هم­افزایی نیروی باد همگرای محلی است.

کلیدواژه‌ها

عنوان مقاله [English]

Morphological study of the sand dunes in Zarrin Erg and its adaptation to the regional wind data

نویسندگان [English]

  • Mohamad Sharifi Paichoon 1
  • Kamal Omidvar 2
  • Zeynab Miri 3
1 Assistant Prof. of Geomorphology, Department of Geography, Yazd University
2 Professor of Climatologylogy, Department of Geography, Yazd University
3 M Sc. of Geomorphology, Department of Geography, Yazd University
چکیده [English]

The purpose of this study is to investigate the morphology of the sand dunes located in Zarin Erg in the northwest of the city of Yazd and its accordance with the wind data provided by the surrounding synoptic stations. The results showed that the sand dunes have different morphologies, including simple dunes, seif, barchans, star, and complex dunes. The complexity and variety of the dunes indicates the drastic variation of wind regimes seasonally, annually as well as periodically. Also, they do not match with any wind data of the surrounding synoptic stations. The presence of barchans in the quadrilateral erg is indicative of directional winds. The local winds are the main cause of the formation of these dunes and their morphology. Indeed, due to the difference of height between the central Iranian playas and upstream mountainous, the playas of this part of Iran often serve as thermal low-pressure centers on the Earth surface, and their marginal sand dunes are always moved by these winds. The accumulation of large amounts of sand in the southeastern part of the erg and the formation of star dunes with a height of more than 200 meters are signs of prevailing north-west winds in the warm season and the severe winds of the southeast in the cold season. These winds reinforce the power of local convergent winds.

کلیدواژه‌ها [English]

  • Zarrin Erg
  • Morphology
  • Barchan
  • Sand dune
  • Wind

مراجع

Ahmadi, H. (1995). Applied Geomorphology (Wind Erosion), Tehran, Tehran University press, (in Farsi).
Al-Harthi, A, A. (2002). Geohazard assessment of sand dunes between Jeddah and Al-Lith, western Saudi Arabia. Environmental Geology, 42, 360-369.
Breed, C. S., & Breed, W. J. (1979). Dunes and other wind landforms of central Australia (and a comparison with linear dunes on the Moenkopi Plateau, Arizona). Earth Observations and Photography: ApolloSoyuz Test Project Summary Science Report, NASA Spec. Publ., SP-412.
Bagnold, R.A. (1941). The Physics of Blown Sand and Desert Dunes, London Methuen press.
Daniell,  J., and Hughes, M. (2007). The morphology of barchan-shaped sand banks from western Torres Strait. Northern Australia. Journal of Sedimentary Geology, 202, 638-652.
Del Valle, H.F., Rostagon, F.R.C.M., Coronato, F.R., Bouza, P.J., and Blanceo, P.D. (2008). Sand dune activity in north-eastern Patagonia. Journal of arid Environment, 72, 411-422.
Dong, Z., Qian, G., Lv, P., HU, G. (2013). Investigation of the sand sea with the tallest dunes on Earth. China's Badain Jaran Sand Sea. Earth-Science Reviews, 120, 20–39.
Ekhtesasi, M. R., Dadfar, S. (2013). Investigation on Relationship between Coastal Hurricanes and Sand Dunes Morphology in South of Iran. Phisical Geography Researches, 45, 61-72, (in Farsi).
Fattahi, Y., Nazari Samani, A. A., Abbasi, H. R., Ahmadi, H. (2018). A comparative study of wind directions and sand dunes morphology of Jen erg. Journal of researches of earth science 8, Pp. 1-17, (in Farsi).
Finkel, H.J. (1959). The barchans of southern Peru. Journal of Geology 67, 614–647.
Hermas, E., Leprince, S., and El-Magd, I. A. (2012). Retrieving Sand Dune Movements Using Sub-Pixel Correlation of Multi-Temporal Optical Remote Sensing Imagery, Northwest Sinai Peninsula, Egypt. Remote Sensing of Environment 121, PP. 51-60. DOI:10.1016/j.rse. 2012.01.002.
Johanna C. S., Hamish A. M., & David T. N. (2008). Meteorological controls on sand transport and dune morphology in a polar-desert: Victoria Valley, Antarctica. Earth Surf. Process. Landforms 33, 1875–1891.
McKee, E. (1979). A study of global sand seas. United States Geological Survey, Professional Paper 1052, Washington, D. C..
Lancaster, N. (1995). The Geomorphology of Desert Dunes. Routledge, London (290 p.).
Livingstone, I., Bristow, C., Bryant, R.G., Bullard, J., White, K., Wiggs, G.F.S., Baas, A.C.W., Bateman, M.D., Thomas, D.S.G. (2010). The Namib Sand Sea Digital Database of aeolian dunes and key forcing variables. Aeolian Research 2, 93–104.
Maghsoudi, M., Mehdi Baharvand, M., Mahboobi, S., Zahra Khanbabaei, Z., Mohammadi, A. 2018. Analysis of Barchan morphology in the west of Loot desert using morphometric features.  Geographical Research on Desert Areas 6, Pp. 175-197, (in Farsi).
Mahmoudi, F. (1995). Geographical distribution of important ergs of Iran, Geographical researches 34, 5-35, (in Farsi).
Mashhadi, N., Amirsalani, F., & Karimpour Reyhan, M. (2006). “Morphology study of the sand dunes of Kharturan Erg”, Journal of the Desert, 11, 223-225, (in Farsi).
Mousavi, H., Vali, A. A., Moayeri, M. (2010). The effectiveness of Barchan morphometric parameters on its movement rate (Case study Chah Jam Erg), Geography and Environmental Planning, 21, 101-1118, (in Farsi).
Parimi, M., Khanebad, M., Mousavi Herami, R., Mahboubi, A. (2015). Sedimentology and morphometric study of sand dunes (Barchan type and nebkha dunes) in the margin of Haj Aligholi Desert, South of Damghan 1, Pp. 255-264, (in Farsi).
Qong, M. (2000). Sand Dune Attributes Estimated from SAR Images,Remote Sensing of Environment 74, 217-228.
Rezazadeh Balgori, B.,  Amini, A. , Mirab Shabestari, G.R. (2018). Determination of relationship between sedimentological parameters and morphology of linear sand dunes in north of Ahangaran, east of Iran. Iranian Journal of Geology 44, 65-78, (in Farsi).
Redsteer, M. H., Kelley, K. B., and Francis H. (2011). Monitoring and Analysis of Sand Dune Movement and Growth on the Navajo Nation, Southwestern United States. USGS Survey Fact Sheet 2011-3085. http://pubs.usgs. gov/fs/2011/3085/.
SaremiNainy, M. A., Ahmadi, H., Khalili, A., Ekhtesasi, M. R. (2006). Comparative analysis on the spatial distribution of Wind Rose, Storm Rose, and Sand Rose in the study of Wind Erosion using GIS technique: (Case Study Area: Yazd – Ardakan Basin). Master's Thesis, Faculty of natural sources, Tehran University, (in Farsi).
SaremiNainy, M. A. (2017). Estimate the frequency of speed and direction of erosive winds and generating dust storms in Yazd province by using Windrose, Stormrose and Sandrose. Desert Management 4, Pp. 96-106, (in Farsi).
Shahriar, A., Taherinejad, K. (2018). The Role of Wind Direction and Unidirectional Index in the Time Development and Determining the Sand Dunes Morphology (Case Study: Sadegh Abad Erg-Bafq). Quaternary journal of Iran 4, Pp. 187-198, (in Farsi).
Sharifi Paichoon, M., Ghafarian, H. R., Miri, Z. (2020a). Evaluation of spatio-temporal variations of sand dunes surface using time series satellite observations of Landsat imageries (Case study: Rig-Zarin). Geography and development Iranian Journal 18, 45-58, (in Farsi).
Sharifi Paichoon, M., Ghafarian, H. R., Miri, Z. (2020b). Study of elevation changes of Rig-e-Zarrin using time series of satellite images (during 1977-2016). Quantitative Geomorphological Researches, 8, 192-206, (in Farsi).
Sharifi Paichoon, M., Miri, Z. (2017). Assessment of the role of local winds in wind erosion (Case study: Zarrin Erg). 4ℎ national conference of wind erosion and dust storms, Yazd University, (in Farsi).
Silvestro, S., Achill Di, G. and Ori, G.G. (2010). Dune morphology, sand transport pathways and possible source areas in east Thaumasia Region (Mars). Geomorphology, 121, 84-97.
Sparavigna, A. C. (2013). A Study of Moving Sand Dunes by Means of Satellite Images. the International Journal of Sciences 2, (8), 33-42.
Taniguchi, K., Endo, N., Sekiguchi, H. (2012). The effect of periodic changes in wind direction on the deformation and morphology of isolated sand dunes based on flume experiments and field data from the Western Sahara. Geomorphology 179(15), 286-299.
Tavakkoli Fard, A., Nazari Samani, A. A., Ghasemieh, H., Mashhadi, N. (2013). Application of Aeolian Sediments Granulometry Characteristics to Determine the Morphology of Homogenous Sand Dunes through Multivariate Data Analysis (Case Study: Kashan Erg). Desert Management 2, 13-26, (in Farsi).
Wang, X., Dong, Z., Yan, P., Zhang, J. and Chen, G., 2005. Wind Energy Environments and Dune Field Activity in the Chinese Deserts. Geomorphology, 65, 33-48.
Wasson, R. J., Hyde, R., 1983, Factors Determining Desert Dune Type, Nature, 304, 337- 339.
Zobeck, T.M. (1991). Soil properties affecting wind erosion. Journal of Soil and water conservation 46, 112-118.
کاوش های جغرافیایی مناطق بیابانی
دوره 8، شماره 1
شهریور 1399
صفحه 1-27

فایل ها

هم رسانی

ارجاع به این مقاله

آمار