NASA Goddard's LiDAR, Hyperspectral and Thermal (G-LiHT) Airborne Imager
NASA Goddard's LiDAR, Hyperspectral and Thermal (G-LiHT) Airborne Imager
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DOI：
10.3390/rs5084045
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发表时间：
2013-08-01
期刊：
影响因子：
5
通讯作者：
Montesano, Paul M.
中科院分区：
文献类型：
--
作者：
Cook, Bruce D.;Corp, Lawrence A.;Montesano, Paul M.
激光雷达和光学遥感数据的结合提供了有关生态系统结构和功能的独特信息。在这里，我们描述了一种新型机载系统的开发、验证和应用，该系统将商用现成 LiDAR 高光谱和热组件集成在一个紧凑、轻便和便携式系统中。 Goddard 的 LiDAR、高光谱和热 (G-LiHT) 机载成像仪是一种独特的系统，允许在各种机载平台上以非常高的空间分辨率（大约 1 m）同时测量植被结构、叶面光谱和表面温度。激光雷达、光学和热数据的互补性为开发新算法提供了分析框架，以绘制植物物种组成、植物功能类型、生物多样性、生物量和碳储量以及植物生长。此外，G-LiHT 数据增强了我们验证现有卫星任务数据并支持 NASA 地球科学研究的能力。 G-LiHT 的数据处理和分发系统旨在让科学家开放访问低级和高级数据产品 (http://gliht.gsfc.nasa.gov)，这将刺激协同数据融合算法的社区发展。 G-LiHT 已被用于收集超过 6,500 km(2) 的数据，用于 NASA 资助的跨越美国和墨西哥广泛生态区的研究。在本文中，我们记录了 G-LiHT 的设计注意事项、物理规格、仪器性能以及校准和采集参数。此外，我们还描述了根据 NASA 数据和信息政策免费分发的数据处理系统和更高级别的数据产品。
The combination of LiDAR and optical remotely sensed data provides unique information about ecosystem structure and function. Here, we describe the development, validation and application of a new airborne system that integrates commercial off the shelf LiDAR hyperspectral and thermal components in a compact, lightweight and portable system. Goddard's LiDAR, Hyperspectral and Thermal (G-LiHT) airborne imager is a unique system that permits simultaneous measurements of vegetation structure, foliar spectra and surface temperatures at very high spatial resolution (approximate to 1 m) on a wide range of airborne platforms. The complementary nature of LiDAR, optical and thermal data provide an analytical framework for the development of new algorithms to map plant species composition, plant functional types, biodiversity, biomass and carbon stocks, and plant growth. In addition, G-LiHT data enhance our ability to validate data from existing satellite missions and support NASA Earth Science research. G-LiHT's data processing and distribution system is designed to give scientists open access to both low- and high-level data products (http://gliht.gsfc.nasa.gov), which will stimulate the community development of synergistic data fusion algorithms. G-LiHT has been used to collect more than 6,500 km(2) of data for NASA-sponsored studies across a broad range of ecoregions in the USA and Mexico. In this paper, we document G-LiHT design considerations, physical specifications, instrument performance and calibration and acquisition parameters. In addition, we describe the data processing system and higher-level data products that are freely distributed under NASA's Data and Information policy.