We analyze tropospheric column ozone (TCO) data observed by satellite instruments over East Asia for 15 years (from 1995 to 2009), and investigate the relationship between enhanced TCO (E-TCO) and ozone intrusion from the stratosphere near the subtropical jet (STJ). A belt of E-TCO is observed at mid-latitude over East Asia throughout the year; the belt is located at latitudes approximately equ...

Throughout prehistory, the cultures of Iran and Western Asia differed in important respects. Many of these differencescan be attributed to the different geographic and environmental conditions in the two regions. Western Iran is largely aheavily divided mountainous region with difficult access whereas Mesopotamia is relatively flat and open to travel andtrade. The early Holocene environment of ...

The oblique collision between the northeastern margin of Arabian platform and Iranian microcontinent has led to transpressional deformation in Zagros orogenic belt central part Alpine–Himalayan belt. Although previous articles have emphasized dextral sense shear belt, this paper, using several indicators kinematic upon field checking microscopic thin-section studies, evidence development a sini...

MIPAS detects Antarctic stratospheric belt of NAT PSCs caused by mountain waves M. Höpfner, N. Larsen, R. Spang, B. P. Luo, J. Ma, S. H. Svendsen, S. D. Eckermann, B. Knudsen, P. Massoli, F. Cairo, G. Stiller, T. v. Clarmann, and H. Fischer Forschungszentrum Karlsruhe, Institut für Meteorologie und Klimaforschung, Karlsruhe, Germany Danish Meteorological Institute, Middle Atmosphere Research Di...

Abstract. There have been rapid increases in both the number and expansion of proglacial lakes across High Mountain Asia. However, relationship between glacier dynamics remains unclear Himalayan region. Here we present surface elevation, flow-velocity changes, lake Thorthormi Lugge glaciers Lunana region, Bhutanese Himalaya, during 2000–2018 period using photogrammetry GPS survey data. The lowe...

ODP Site 1124, located 600 km east of the North Island of New Zealand, records post-middle Oligocene variations in the Pacific Deep Western Boundary Current (DWBC) and New Zealand’s climatic and tectonic evolution. Sediment parameters, such as terrigenous grain size, flux, magnetic fabric, and non-depositional episodes, are used to interpret DWBC intensity and Antarctic climate. Interpretations...

Allochthonous masses are common structures in Zagros fold-thrust belt. They are generally considered as collapse structures formed by the influence of gravity and in rock units with competency contrast. However, large allochthonous masses mapped in Dowgonbadan area in Dezful Embayment near the Mountain Front Fault (MFF) of Zagros show characteristics different from the belt common collapse stru...

palynological analyses from exposed palaeolacustrine deposits located at the flanks of damavand volcano, in the central alborzmountains in northern iran, provide a broad idea of the temporal variation of vegetation according to climate changes during a rangeof limited time intervals during the quaternary period. this research reveals that the regional vegetation of the study area had been asemi...