...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International journal of remote sensing >Monitoring intense dust storms over the Indian region using satellite data - a case study
【24h】

Monitoring intense dust storms over the Indian region using satellite data - a case study

机译：使用卫星数据监测印度地区的强烈沙尘暴-案例研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Dust storms are normally considered to be natural hazards. During such events, dust aerosol is loaded into the atmosphere, directly reducing visibility and effectively reflecting solar radiation back to space. In the present study, an intense dust storm was monitored during the first week of June 2010 using Moderate Resolution Imaging Spectroradiometer (MODIS) Terra and Aqua data over the Indian region. A dust cloud was detected using a combination of MODIS reflective and emissive channels and moving trace/spread monitored by its multi-temporal data. The MODIS Terra-derived aerosol optical depth at 550 nm (AOD_(550)) and the aerosol index (AI) obtained from the Ozone Monitoring Instrument (OMI) were used in conjunction with National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis wind fields for the monitoring of dust clouds. The study reveals that the movement of a high concentration of dust clouds coincided with the NCEP/NCAR reanalysis meridional and zonal wind fields (>8 m s~(-1)) at pressure levels of 700 hPa. The Cloud-Aerosol Lidar Pathfinder Satellite Observations (CALIPSOs) that derive vertical feature mask images also suggested that the vertical extent of the dust aerosol layer was at a height of about 6 km over northern India on 2 June 2010. The roles of long-range transport of dust over the entire Gangetic plane are analysed using back trajectories from the National Oceanic and Atmospheric Administration (NOAA) Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model. Back trajectory analysis suggests that dust clouds moving over long distances entered from the western side of India on 1 June 2010.
机译：沙尘暴通常被认为是自然灾害。在此类事件中，粉尘气溶胶会加载到大气中，直接降低能见度并有效地将太阳辐射反射回太空。在本研究中，使用印度地区中分辨率成像光谱仪（MODIS）的Terra和Aqua数据在2010年6月的第一周对强烈沙尘暴进行了监测。使用MODIS反射和发射通道的组合检测了尘埃云，并通过其多时相数据监控了移动的迹线/传播。由MODIS Terra衍生的550 nm气溶胶光学深度（AOD_（550））和从臭氧监测仪（OMI）获得的气溶胶指数（AI）与国家环境预测中心/国家大气研究中心（ NCEP / NCAR）重新分析风场以监测尘埃云。研究表明，在700 hPa的压力下，高浓度尘埃云的移动与NCEP / NCAR再分析子午和纬向风场（> 8 m s〜（-1））吻合。得出垂直特征掩模图像的云气激光雷达探路者卫星观测结果（CALIPSO）也表明，2010年6月2日印度北部上空的尘埃气溶胶层的垂直范围约为6 km。远程作用使用美国国家海洋和大气管理局（NOAA）混合单颗粒拉格朗日综合轨迹（HYSPLIT）模型的后向轨迹分析了整个恒河平面上的尘埃运移。反向轨迹分析表明，长距离移动的尘埃云于2010年6月1日从印度西部进入。

著录项

  • 来源
    《International journal of remote sensing》 |2013年第20期|7038-7048|共11页
  • 作者

    Biswadip Gharai; Subin Jose; D.V. Mahalakshmi;

  • 作者单位

    Atmosphere and Ocean Sciences Group, Earth and Climate Science Area (ECSA), National Remote Sensing Center, Department of Space, Govt. of India, Balanagar, Hyderabad-500 037, India;

    Atmosphere and Ocean Sciences Group, Earth and Climate Science Area (ECSA), National Remote Sensing Center, Department of Space, Govt. of India, Balanagar, Hyderabad-500 037, India;

    Atmosphere and Ocean Sciences Group, Earth and Climate Science Area (ECSA), National Remote Sensing Center, Department of Space, Govt. of India, Balanagar, Hyderabad-500 037, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号