scholarly journals A Case Study of the Stratospheric and Mesospheric Concentric Gravity Waves Excited by Thunderstorm in Northern China

Atmosphere ◽  
2018 ◽  
Vol 9 (12) ◽  
pp. 489 ◽  
Author(s):  
Ying Wen ◽  
Qilin Zhang ◽  
Haiyang Gao ◽  
Jiyao Xu ◽  
Qinzeng Li
Keyword(s):  
Gravity Waves ◽  
Inner Mongolia ◽  
Northern China ◽  
Temperature Perturbation ◽  
Atmospheric Infrared Sounder ◽  
Stratospheric Temperature ◽  
Initial Stage ◽  
Inner Mongolia Autonomous Region ◽  
Complete Process

In this paper, the complete process in which a concentric gravity wave (CGW), excited by a tropospheric thunderstorm, propagated into the stratosphere and mesosphere in Northern China is investigated. A strong thunderstorm developed in the middle of the Inner Mongolia autonomous region on the night of 10th August 2013. The stratospheric temperature perturbation, caused by the CGW, was observed by the Atmospheric Infrared Sounder (AIRS) at 02:11 LT 11th August 2013. An all-sky OH imager at the Shuozhou station (39.8° N, 112.1° E), supported by the Meridian Space Weather Monitoring Project, measured the mesospheric CGW between 22:00 LT to 23:00 LT on the night. It was certified that both the stratospheric and mesospheric CGWs were triggered by the aforementioned thunderstorm, and the excitation source was calculated to be located at (40.59° N, 108.67° E) by employing the dispersion relation. The CGWs were excited in the initial stage of the thunderstorm. The temperature and wind field data obtained by SABER and meteoric radar, respectively, were used to evaluate the background properties of the respective propagation regions. The result shows that an obvious thermal duct structure, with a positive squared vertical wavenumber (m2) existed around the OH layer.

scholarly journals Intercomparison of stratospheric gravity wave observations with AIRS and IASI

2014 ◽  
Vol 7 (12) ◽  
pp. 4517-4537 ◽  
Author(s):  
L. Hoffmann ◽  
M. J. Alexander ◽  
C. Clerbaux ◽  
A. W. Grimsdell ◽  
C. I. Meyer ◽  
...  
Keyword(s):  
Gravity Wave ◽  
Gravity Waves ◽  
Global Scale ◽  
Wave Activity ◽  
Spatial And Temporal Patterns ◽  
Atmospheric Infrared Sounder ◽  
Substantial Impact ◽  
Stratospheric Temperature ◽  
Consistent Picture ◽  
Time Variations

Abstract. Gravity waves are an important driver for the atmospheric circulation and have substantial impact on weather and climate. Satellite instruments offer excellent opportunities to study gravity waves on a global scale. This study focuses on observations from the Atmospheric Infrared Sounder (AIRS) onboard the National Aeronautics and Space Administration Aqua satellite and the Infrared Atmospheric Sounding Interferometer (IASI) onboard the European MetOp satellites. The main aim of this study is an intercomparison of stratospheric gravity wave observations of both instruments. In particular, we analyzed AIRS and IASI 4.3 μm brightness temperature measurements, which directly relate to stratospheric temperature. Three case studies showed that AIRS and IASI provide a clear and consistent picture of the temporal development of individual gravity wave events. Statistical comparisons based on a 5-year period of measurements (2008–2012) showed similar spatial and temporal patterns of gravity wave activity. However, the statistical comparisons also revealed systematic differences of variances between AIRS and IASI that we attribute to the different spatial measurement characteristics of both instruments. We also found differences between day- and nighttime data that are partly due to the local time variations of the gravity wave sources. While AIRS has been used successfully in many previous gravity wave studies, IASI data are applied here for the first time for that purpose. Our study shows that gravity wave observations from different hyperspectral infrared sounders such as AIRS and IASI can be directly related to each other, if instrument-specific characteristics such as different noise levels and spatial resolution and sampling are carefully considered. The ability to combine observations from different satellites provides an opportunity to create a long-term record, which is an exciting prospect for future climatological studies of stratospheric gravity wave activity.

Controls of oil family distribution and composition in nonmarine petroleum systems: A case study from Inner Mongolia Erlian basin, Northern China

2014 ◽  
Vol 92 ◽  
pp. 36-52 ◽  
Author(s):  
Zhelong Chen ◽  
Guangdi Liu ◽  
Zhilong Huang ◽  
Xuejun Lu ◽  
Qiang Luo ◽  
...  
Keyword(s):  
Inner Mongolia ◽  
Northern China ◽  
Petroleum Systems ◽  
Erlian Basin

Measuring on the Sustainable Development in Ecotone: A Case Study of Dalate County in Inner Mongolia Province

2012 ◽  
Vol 524-527 ◽  
pp. 3403-3410
Author(s):  
Yang Yang Du ◽  
Yu Xin Wang
Keyword(s):  
Economic Development ◽  
Inner Mongolia ◽  
Ecological Footprint ◽  
The Sustainable Development ◽  
Ecological Capacity ◽  
Ecosystem Services Value ◽  
Ecological Protection ◽  
Analysis Theory ◽  
Inner Mongolia Autonomous Region

Coordinating the relationship between economic development and ecological protection, a series of complex tests have been given to many governments，especialy in ecotone. taking Dalate County for example, the ecological characteristics and the situation economic development are evaluated by an improved ecological footprint model, which is based on emergy analysis theory and ecosystem service function model. The calculating results indicate that the ecological footprint of Dalate County is 3.9×106hm2 in total annualy, the actual output ecological capacity is 2.04×106hm2. There is a huge gap between ecological footprint and ecological capacity. The total ecosystem services value is 1.01×1010 CNY•a. And among all types land, woodland contributes the greatest, which is 4.19×109 CNY•a. Among all kinds service, regulation service take the largest proportion, which value is 5.53×109 CNY•a. Those results can be used to guide ecological protection and economic development in ecotones, like Dalate County in Inner Mongolia Autonomous Region.

scholarly journals Metacognitive variety, from Inner Mongolian Buddhism to post-truth

2018 ◽  
Author(s):  
Jonathan Mair
Keyword(s):  
Inner Mongolia ◽  
Northern China ◽  
Ethnographic Research ◽  
Cognitive Experience

In this chapter, a case study is presented based on ethnographic research carried out in Inner Mongolia, northern China. A Buddhist teacher and his students have subtly different metacognitive relationships to Buddhism, and their practice and knowledge are dramatically different as a result. This case study is offered as an example of metacognitive variety, and an argument is made that a similar approach is required to understand other cases in which people reflect, and attempt to act, on their own belief, knowledge, ignorance, and cognitive experience, including the transformations that have been described as “post-truth.” In conclusion, some methodological remarks are made about the study of metacognition through ethnography.

Impact of center pivot irrigation on vegetation dynamics in a farming-pastoral ecotone of Northern China: A case study in Ulanqab, Inner Mongolia

2019 ◽  
Vol 101 ◽  
pp. 274-284
Author(s):  
Xin Chen ◽  
Fangtian Wang ◽  
Li Jiang ◽  
Can Huang ◽  
Pingli An ◽  
...  
Keyword(s):  
Vegetation Dynamics ◽  
Inner Mongolia ◽  
Northern China ◽  
Center Pivot

Restructing Industry Category and Distribution across Administrative Areas Based on Environmental Constraint - A Case Study of Wuhai and its Surrounding Regions, Inner Mongolia Autonomous Region, China

2012 ◽  
Vol 524-527 ◽  
pp. 3283-3289
Author(s):  
Wen Qi Lin ◽  
Qiu Sang ◽  
Ting Yu ◽  
Ming Fei Ma
Keyword(s):  
Spatial Distribution ◽  
Inner Mongolia ◽  
Border Region ◽  
Entire Area ◽  
Autonomous Region ◽  
Industrial Chain ◽  
Environmental Goals ◽  
Surrounding Areas ◽  
Inner Mongolia Autonomous Region

Industrial agglomeration often happens in the surrounding areas of a relatively developed industrial zone. If these industries are not environmentally friendly, the entire area will be contaminated. This is often the case in China. Therefore, in order to reduce the pollution in these contaminated regions, restructuring the category, size and spatial distribution of the surrounding industries based on the environmental constraints is urgently needed. In this paper, we build the relationship between the environmental contaminants and the industrial types, calculate the amount of pollution distribution in the industrial chain, and propose the approaches to control the types, size and spatial distribution of polluting industries. In the case of Wuhai and its surrounding regions(WH&SR), Inner Mongolia Autonomous Region, based on the calculation of industrial types, size and spatial distribution in every cross-border region, we find that under the world-leading Cleaner Production Standards, output of polluting industries should be less than 20% in order to achieve its environmental goals.

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