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.

正确表征土壤，植物和地质材料中空间和时间变异性取决于时间，人工和成本密集的样本收集，加工以及许多样品的实验室测量。几十年来，科学家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学组成，并评估一系列物理和化学特性。在这些研究中，横跨可见，近红外和中红外的光谱是出现的。技术的进步和更快的计算支持各种物理和化学特性的快速表征，包括矿物质成分，粘土含量，颜色，水分，有机碳/物质，pH，可交换阳离子，CEC等，具有公平的准确性。光谱方法的优势是快速，健壮和环境友好的，它打破了样品收集和实验室测试的瓶颈，并允许对许多代表样品进行土壤，植物和地质材料的即时评估，这些样本涵盖了广阔的地理区域。同样，虽然卫星远程收集光谱信息，但必须在地面上验证它们以正确利用数据和信息推导。 我们要求使用SpectrorAdiometer系统，ASD FieldSpec 4用于土壤，植物和地质材料表征以及接地式遥感图像的HI-RES。高分辨率（3 nm）光谱仪设计用于可见的和近红外范围（350-2500 nm）的更快，更精确的光谱数据测量，用于在田间和实验室中的广泛应用。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中至少六个不同的研究计划的进步。包括探针，校准集，照明，镜头和软件在内的配件将提高数据及其集合的质量。提出的工具对于实现PI和Co-Pi的研究计划的进步以及HQP在这些计划中受过培训的成功至关重要。此外，多个研究计划之间的协作将大大提高这些研究计划的范围，影响和生产力。该仪器未替换附近任何机构的现有任何现有或可用的仪器。它将安置在圭尔夫大学环境科学学院内。预计利用率将很高（约250天/年），并且将在未来五年内使用该仪器对HQPS（〜30）进行培训。拟议的工具将显着推动和加速研究能力，并能够检查不同科学领域的新重要问题。获取该工具的延迟将大大中断尖端研究和妥协加拿大立场的进步和成功。