• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Algorithms and technologies for multispectral, hyperspectral, and ultraspectral imagery XX >First results from the HyperSpectral Imager for Climate Science (HySICS)
【24h】

First results from the HyperSpectral Imager for Climate Science (HySICS)

机译：气候科学高光谱成像仪（PHySICS）的首批结果

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

The 2007 National Research Council Decadal Survey for Earth Science identified needed measurements to improve understanding of the Earth's climate system, recommending acquiring Earth spectral radiances with an unprecedented 0.2% absolute radiometric accuracy to track long-term climate change and to improve climate models and predictions. Current space-based imagers have radiometric uncertainties of ～2% or higher limited by the high degradation uncertainties of onboard solar diffusers or calibration lamps or by vicarious ground scenes viewed through the Earth's atmosphere. The HyperSpectral Imager for Climate Science (HySICS) is a spatial/spectral imaging spectrometer with an emphasis on radiometric accuracy for such long-term climate studies based on Earth-reflected visible and near-infrared radiances. The HySICS's accuracy is provided by direct views of the Sun, which is more stable and better characterized than traditional flight calibration sources. Two high-altitude balloon flights provided by NASA's Wallops Flight Facility and NASA's Columbia Scientific Balloon Facility are intended to demonstrate the instrument's 10× improvement in radiometric accuracy over existing instruments. We present the results of the first of these flights, during which measurements of the Sun, Earth, and lunar crescent were acquired from 37 km altitude. Covering the entire 350-2300 nm spectral region needed for shortwave Earth remote sensing with the HySICS's single, flight-heritage detector array promises mass, cost, and size advantages for eventual space- and air-borne missions. A 6 nm spectral resolution with a 0.5 km spatial resolution from low Earth orbit helps in determinations of atmospheric composition, land usage, vegetation, and ocean color.
机译：2007年美国国家研究委员会地球科学十年调查确定了需要进行的测量，以增进对地球气候系统的了解，建议获取具有前所未有的0.2％绝对辐射度准确度的地球光谱辐射，以跟踪长期气候变化并改善气候模型和预测。当前的天基成像仪的辐射不确定度约为〜2％或更高，这受机载太阳能扩散器或校准灯的高退化不确定性或通过地球大气层观测的替代地面场景的限制。用于气候科学的高光谱成像仪（HySICS）是一种空间/光谱成像光谱仪，在基于地球反射的可见光和近红外辐射量的此类长期气候研究中，重点在于辐射测量精度。 HySICS的准确性由太阳的直视视图提供，与传统的飞行校准源相比，它更稳定且具有更好的特性。 NASA的Wallops飞行设施和NASA的Columbia Scientific气球设施提供了两次高空气球飞行，目的是证明该仪器的辐射精度比现有仪器提高了10倍。我们介绍了这些飞行中的第一个飞行的结果，在此期间从37公里的高度获取了太阳，地球和月球新月的测量值。 HySICS的单一飞行遗产探测器阵列覆盖了短波地球遥感所需的整个350-2300 nm光谱区域，有望为最终的空空飞行任务带来质量，成本和尺寸优势。 6纳米光谱分辨率和距低地球轨道0.5 km的空间分辨率有助于确定大气成分，土地利用，植被和海洋颜色。

著录项

  • 来源
  • 会议地点 Baltimore MD(US)
  • 作者

    Greg Kopp; Chris Belting; Zach Castleman; Ginger Drake; Joey Espejo; Karl Heuerman; Bret Lamprecht; James Lanzi; Paul Smith; David Stuchlik; Bill Vermeer;

  • 作者单位

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    NASA Wallops Flight Facility, Wallops Island, VA, 23337 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

    NASA Wallops Flight Facility, Wallops Island, VA, 23337 U.S.A.;

    Laboratory for Atmospheric and Space Physics, Univ. of Colorado, Boulder, CO 80303 U.S.A.;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hyperspectral imaging; climate change; radiometry; spectrometry;

    机译：高光谱成像；气候变化；放射线学光谱法;

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