Validation of the remote sensing products at a watershed scale in China

The systemic validation works were carried out at a watershed scale based on the ground-based observation data of the Heihe Watershed Allied Telemetry Experimental Research (HiWATER). Three validation strategies, scaling-up, spatial representation analysis, footprint analysis were used based on different data acquirement techniques. Some studies were performed and four types of remote sensing products were validated. This paper makes a general introduction on the validation results based on these systematic validation activities, which aims to support the integrated study of the water-ecosystem-economy in the Heihe River Basin.

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