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A solution for the gap between data availability and the impacts of water variability, across all scales of interest, on people and the environment is needed. One of my great hopes for the development of OGC standards for interoperable hydrometric data is that it will shed light on the dark data under the long tail of hydrometry. It is my opinion, unsubstantiated by quantitative surveys, that there are far more hydrometric data out there than are readily accessible from the major hydrometric data providers.
Quantifying the size of the opportunity for increasing our global hydrometric data asset is a daunting task. I would like to get at least a small sense for this opportunity with an informal survey of readers of the Hydrology Corner Blog.
– Stu Hamilton, Senior Hydrology