Time for in situ renaissance

Odada E, Fekete BM, Robarts RD, Kumagai M, Nachtnebel H-P, Zhulidov AV. "Time for in situ renaissance." Science. 2015;349(6249):685-686.


of satellite observations is that measurements are readily collected and shared across
political boundaries. In contrast, many countries refuse to share ground-based hydrologic
measurements for socioeconomic and political reasons, whereas others simply lack the
capacity to centralize and digitize what data are collected. This impedes investigations on a
continental-to-global scale, as well as efforts to avert food and water crises. Because
satellites can monitor water resources at scales relevant to effective transboundary water
management and because data are often provided through freely accessible digital
archives, policies of international data denial may ultimately become obsolete (17).
Governments around the world are now instructing their water management agencies to
plan for the uncertain hydrologic future that satellite observations have helped reveal.

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