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

土壤、植物和地质材料的时空变异性的适当表征取决于时间、劳动力和成本密集的样品收集、加工和对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学成分，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性进展。技术的进步和更快的计算支持了各种物理和化学性质的快速表征，包括矿物成分、粘土含量、颜色、水分、有机碳/物质、pH、可交换阳离子、CEC等。光谱方法的优点是快速、可靠和环境友好，它打破了样品采集和实验室测试的瓶颈，可以对覆盖广阔地理区域的许多具有代表性的样品进行现场和异地即时评估。同样，虽然卫星远程收集光谱信息，但必须在地面进行验证，以便适当利用数据和获取信息。 我们需要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真实遥感图像。高分辨率(3 Nm)光谱辐射计专为在可见光和近红外(350-2500 nm)范围内进行更快、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计划的进展。包括探头、校准装置、照明、镜头和软件在内的附件将提高数据的质量和收集数据。建议的工具对于实现PI和Co-PI研究计划的进展以及在这些计划中培训的HQP的成功至关重要。此外，多个研究项目之间的合作将显著增加这些研究项目的范围、影响和生产率。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。预计利用率将非常高(约250天/年)，并将在未来五年内使用该仪器培训大量HQP(~30)。拟议的工具将极大地推动和加速研究能力，并使之能够审查不同科学领域的新的重要问题。延迟获得这一仪器将严重干扰尖端研究的进展和成功，并损害加拿大在全球的地位。

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.