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首页> 外文会议>Conference on Sensors, Systems, and Next-Generation Satellites VI Sep 23-26, 2002 Agia Pelagia, Crete, Greece >Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS)
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Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS)

机译：可追踪的放射学基础为陆地和日光研究（TRUTHS）

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The Traceable Radiometry Underpinning Terrestrial- and Helio- Studies (TRUTHS) mission offers a novel approach to the provision of key scientific data with unprecedented radiometric accuracy for Earth Observation (EO) and solar studies, which will also establish well-calibrated reference targets/standards to support other EO missions. This paper will present the TRUTHS mission and its objectives. TRUTHS will be the first satellite mission to calibrate its instrumentation directly to SI in orbit, overcoming the usual uncertainties associated with drifts of sensor gain and spectral shape by using an electrical rather than an optical standard as the basis of its calibration. The range of instruments flown as part of the payload will also provide accurate input data to improve atmospheric radiative transfer codes by anchoring boundary conditions, through simultaneous measurements of aerosols, particulates and radiances at various heights. Therefore, TRUTHS will significantly improve the performance and accuracy of Earth observation missions with broad global or operational aims, as well as more dedicated missions. The provision of reference standards will also improve synergy between missions by reducing errors due to different calibration biases and offer cost reductions for future missions by reducing the demands for on-board calibration systems. Such improvements are important for the future success of strategies such as Global Monitoring for Environment and Security (GMES) and the implementation and monitoring of international treaties such as the Kyoto Protocol. TRUTHS will achieve these aims by measuring the geophysical variables of solar and lunar irradiance, together with both polarised and un-polarised spectral radiance of the Moon, and the Earth and its atmosphere.
机译：地面和日光研究的可追溯辐射计量基础任务（TRUTHS）提供了一种新颖的方法，可为地球观测（EO）和太阳研究提供具有空前的辐射精确度的关键科学数据，还将建立经过良好校准的参考目标/标准支持其他EO任务。本文将介绍TRUTHS的使命及其目标。 TRUTHS将是第一个将其仪器直接校准到在轨SI的人造卫星任务，通过使用电子而非光学标准作为校准的基础，克服了与传感器增益和频谱形状漂移有关的常见不确定性。作为有效载荷一部分飞行的一系列仪器还将通过锚定边界条件，通过同时测量各种高度的气溶胶，微粒和辐射率，来提供准确的输入数据，以改善大气辐射传递代码。因此，TRUTHS将显着提高具有广泛的全球或业务目标以及更专门的任务的地球观测任务的性能和准确性。提供参考标准还将通过减少由于不同的校准偏差引起的误差来改善任务之间的协同作用，并通过减少对车载校准系统的需求来减少未来任务的成本。此类改进对于全球环境与安全监控（GMES）等策略的未来成功以及《京都议定书》等国际条约的实施和监控至关重要。 TRUTHS将通过测量太阳和月球辐照度的地球物理变量，以及月球，地球及其大气的极化和非极化光谱辐射，来实现这些目标。

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