Description Usage Arguments Value
View source: R/mahon_bedform_relations.r
ancient_1
estimates the sediment flux (qs
) of ancient river deposits based on dune cross-stratification, bankfull depth reconstruction, and grain size. Implemented from Mahon et al. (2018). Original relations referenced therein.
1 |
Tsm |
The mean thickness of cross-bedded cosets. (see publication for more information) |
D50 |
The median bedload grain size. Determined from samples. |
Hbf |
The mean bankfull flow depth. Determined from preserved barforms. |
uncert |
The uncertainty window for empirical parameters. The user should put in a confidence interval. A lower confidence interval will have a narrower error envelope, but will require more tenuous conclusion. |
Returns a list with elements:
S
, the river slope (dimensionless).
hd
, the dune height in the ancient river (m).
V
, the dune migration rate in the ancient river (m/s).
qs
, the bedload flux in the ancient river (m^3/s).
If uncertainty is also requested, the output will include upper and lower bounds for confidence, V_env
and qs_env
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