reproducible research in hydrology JAN SEIBERT & ILJA VAN - PowerPoint PPT Presentation

Our experiences with reproducible research in hydrology JAN SEIBERT & ILJA VAN MEERVELD UZH-GIUZ – H2K

Research Flow Field work for data collection 2 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can field measurements be reproduced? No man ever steps in the same river twice, for it's not the same river and he's not the same man. Heraclitus (~500 BC) Catchments change, Initial conditions change, Boundary conditions change, Panta rhei (everything flows) 3 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can field measurement methods be reproduced? Grab sample Streamflow - Rating curve From: https://en.wikipedia.org/wiki/Environmental_monito ring 4 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can raw data handling be reproduced? precipitation (mm) 0 400 Precipitation Cumulative 25 300 (mm/hr) Error removal 50 200 Gap filling 75 100 100 0 …. 1,6 1,4 600 Stream stage (m) 1,2 EC (  S/cm) 1,0 400 0,8 0,6 200 ??? 0,4 0,2 0,0 0 7/11 8/11 9/11 10/11 5 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can model code be reproduced? 6 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can model code be reproduced? Example 1 Soil routine of HBV model Fraction of rain or snowmelt to soil moisture storage    recharge S    sm     P F C groundwater recharge 0 Soil moisture [mm] FC 7 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1

Can a hydrology study be reproduced? No , but it should be!!! We should aim for reproducibility where possible Old studies Documentation, supplementary material 8 INNOPOOL WORKSHOP REPRODUCIBLE RESEARCH: SESSION 1