Page History

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Item	Who	Notes
Understanding W cycle	Dom, Bin, Gp	Observations and Models. Data collection is the weak ring of the chain (funding issues) HydroHUB observation support HydroSOS products support WHYCOS has all the value chain WIS 2.0 integration is close to complete. NWP models are input to Hydro Hydro is an input to ESM model GHGs different Hydro cost 20+ k, 2k year running cost as minimum
Evaporation for GBON	Bin, Dom	Flux of W and GHGs analogies High precision instrument exist for GHGs For hydrology uncertainties is huge Evaporation computed not observed ISMN (TU Wien, moved to koblens German part of GTNH in GCOS) GAW 221 Stations with 7 activites (Japan site)
Connecting the Cycles	Gp	Space and Scales analogies Model disconnected on the scale Sinks of CO2 can become sources Droughts, Biodiversity, Carbon Extremes as clusters of Water, Energy, Carbon

Action items

Observations is top priority, GBON expansion leveraging analogies with Hydro & Carbon should
Examine the feasibility of HydroHUB HydroSOS as templates for CarbonHUB (input) and CarbonSOS (output)
Centers for next stage beyib GPCC, will consider Soil Moisture, and possibly FLUXNET with a dual scope Carbon + Hydro?