Hand-held spectroradiometer system for in-situ and ex-situ characterization of soil, plant, and geological materials and ground truthing remote sensing images

手持式光谱辐射计系统，用于土壤、植物和地质材料以及地面实况遥感图像的原位和异位表征

• 批准号: RTI-2021-00442
• 负责人: Biswas, Asim
• 金额: $ 9.34万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments
• 财政年份: 2020
• 资助国家: 加拿大
• 起止时间: 2020-01-01 至 2021-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=718499
• 关键词: Hand; held; spectroradiometer; system; situ

Proper characterization of spatial and temporal variability in soil, plant, and geologic materials depends on time, labor and cost intensive sample collection, processing, and laboratory measurements for many samples. For decades, scientists have used high resolution reflectance spectra to determine mineralogical composition in soil and geologic materials and to assess a range of physical and chemical properties. Spectroscopy across visible, near and mid infrared emerges as a breakthrough in these studies. The advancement of technologies and faster computing supported rapid characterization of various physical and chemical properties including mineral composition, clay content, color, moisture, organic carbon/matter, pH, exchangeable cations, CEC, etc. with fair accuracy. The advantages of spectroscopic approach are rapid, robust and environment friendly and it breaks the bottleneck of sample collection and lab testing and permits instant assessment of soil, plant, and geological materials in-situ and ex-situ on many representative samples covering expansive geographic areas. Similarly, while satellites collect spectral information remotely, they must be validated at ground for proper utilization of data and derivation of information. We are requesting a spectroradiometer system, ASD FieldSpec 4 Hi-Res for soil, plant, and geological material characterization as well as ground truthing remote sensing images. The high-resolution (3 nm) spectroradiometer is designed for faster, more precise spectral data measurements in the visible and near infrared range (350-2500 nm) for a wide array of applications in the field and in the laboratory. The portability, ruggedness and versatility of the instrument will allow wider applications and propel the progress of at least six different research programs in geosciences and engineering. Accessories including probes, calibration sets, lighting, lens, and software will enhance the quality of the data and their collection. The proposed instrument is critical to achieving the progress of PI and Co-PI's research programs and the success of HQP's trained in these programs. Additionally, collaboration among multiple research programs will significantly increase the scope, impact, and productivity of these research programs. The instrument is not replacing any existing one or available at any institution nearby. It will be housed within the School of Environmental Sciences at the University of Guelph. The degree of utilization is expected to be very high (~250 days/year) and a large no of HQPs (~30) will be trained using the instrument over the next five years. The proposed instrument will significantly propel and accelerate the research capability as well as enable the examination of new and important questions in different domains of sciences. Delay in acquiring this instrument will significantly interrupt the progress and success of the cutting-edge research and compromise Canadian standing globally.

土壤、植物和地质材料的空间和时间变异性的适当表征取决于时间、劳动力和成本密集型的样品收集、处理和许多样品的实验室测量。几十年来，科学家们一直使用高分辨率反射光谱来确定土壤和地质材料中的矿物成分，并评估一系列物理和化学性质。可见光、近红外和中红外光谱是这些研究的突破。技术的进步和更快的计算支持快速表征各种物理和化学性质，包括矿物成分，粘土含量，颜色，水分，有机碳/物质，pH值，可交换阳离子，CEC等，具有相当的准确性。光谱方法的优点是快速，稳健和环境友好，它打破了样品收集和实验室测试的瓶颈，并允许对覆盖广阔地理区域的许多代表性样品进行原位和异地土壤，植物和地质材料的即时评估。同样，虽然卫星远距离收集光谱信息，但必须在地面对其进行验证，以便适当利用数据和获取信息。 我们正在申请一个光谱辐射计系统，ASD FieldSpec 4 Hi-Res，用于土壤、植物和地质材料表征以及地面实况遥感图像。高分辨率（3 nm）分光辐射计专为在可见光和近红外范围（350-2500 nm）内更快、更精确的光谱数据测量而设计，适用于现场和实验室的广泛应用。该仪器的便携性、坚固性和多功能性将允许更广泛的应用，并推动地球科学和工程领域至少六个不同研究项目的进展。包括探头、校准装置、照明、透镜和软件在内的附件将提高数据及其收集的质量。所提出的仪器是至关重要的，以实现PI和合作PI的研究计划的进展和HQP的成功，在这些计划中的培训。此外，多个研究项目之间的合作将显着增加这些研究项目的范围，影响和生产力。该仪器不会取代任何现有的仪器，也不会在附近的任何机构提供。它将设在圭尔夫大学环境科学学院内。预计使用程度将非常高（每年约250天），在今后五年内，将有大量的人力资源主管（约30人）接受使用该工具的培训。拟议的仪器将大大推动和加速研究能力，并使不同科学领域的新的和重要的问题的检查。延迟获得这一仪器将严重中断尖端研究的进展和成功，并损害加拿大在全球的地位。