vleguenn
commented
2 years ago I. River forcing : data
b) Datasets from Andrew Coward (N006 runoff file available on JASMIN)
The datasets provided by Andrew Coward uses monthly runoff/river climatologies which were probably not so different to what I already have (I.a). For example, the N006 runoff file is available on JASMIN:
_/gws/nopw/j04/nemo_vol1/ORCA0083-N006/forcing/runoff_coast1pt_ant3pt_isl20_obtaz_1m_ORCA12_correctAMZ_200610_lbclnk.nc_
based originally on the Dai and Trenberth study as documented in Dai and Trenberth, 2002. The original data are available on the web : http ://www.cgd.ucar.edu/cas/catalog/dai/
For the regional configuration, I cut the runoff file to the domain of the EAFRICA model :
ncks -d x,3906,3962 -d y,1355,1478 ./runoff_coast1pt_ant3pt_isl20_obtaz_1m_ORCA12_correctAMZ_200610_lbclnk.nc -O cropped_runoff_ACow.nc
The data is available here : https://github.com/vleguenn/EAFRICA_R12/blob/main/RIVER/ANDREW_COWARD/cropped_runoff_ACow.nc
DrYool
I. River forcing : data
Summary : It explains what river forcing data can be used for the regional NEMO-MEDUSA configuration (1/12°).
I can use two types of datasets :
-> (a) Datasets from literature -> (b) Datasets from Andrew Yool (N006 runoff file available on JASMIN) -> (c) Datasets from JRA55
a) Using datasets from literature
The table below regroups the references used to obtain seasonal river discharge.
The seasonal river discharge of each rivers are shown in the figure below:
The figure below regroups all the rivers discharge (m3 s-1) in one plot :
The river discharge (m3 s-1) datasets can be obtained here (called RIVERS_FLOW): https://github.com/vleguenn/EAFRICA_R12/blob/main/RIVER/LITERATURE/RIVERS_FLOW.mat
References list :
Bouillon, S., Dehairs, F., Schiettecatte, L. S., & Borges, A. V. (2007). Biogeochemistry of the Tana estuary and delta (northern Kenya). Limnology and Oceanography, 52(1), 46-59.
Forestry and Beekeeping Division (2005) Forest condition assessment of the Eastern Arc Mountains Forests of Tanzania. Conservation and Management of the Eastern Arc Mountain Forests, Forestry and Beekeeping Division, Dar es Salaam.
Marwick, T. R., Tamooh, F., Ogwoka, B., Teodoru, C., Borges, A. V., Darchambeau, F., & Bouillon, S. (2014). Dynamic seasonal nitrogen cycling in response to anthropogenic N loading in a tropical catchment, Athi–Galana–Sabaki River, Kenya. Biogeosciences, 11(2), 443-460.
Minihane, M. R. (2012). Evaluation of streamflow estimates for the Rovuma River. Physics and Chemistry of the Earth, Parts A/B/C, 50, 14-23.
Map of the bathymetry (m) and the rivers mouth:
See section I.a) (https://github.com/NOC-MSM/Regional-NEMO-Medusa/issues/9) For the results of the runs that used the above datasets for the rivers (seasonal climatology).