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danigeos / tisc

TISC is a code to model isostasy, erosion/sediment transport/sedimentation, and tectonic kinematics, mostly for the study of sedimentary basins and source to sink systems.
https://sites.google.com/site/daniggcc/software/tisc
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Uniform vertical uplift #18

Closed mberry28 closed 5 years ago

mberry28 commented 5 years ago

Many models use a specified uplift over the model domain. Can TISC do something similar without a hidden load? i.e. specify 1 mm uplift per year over entire domain?

danigeos commented 5 years ago

to specify an uplift rate just go use a 'gradual' unit (specifying "gradual 1" in the header of the *?.UNIT file, and use time and time_stop to distribute the total specified thickness over the desired time period.

mberry28 commented 5 years ago

Of course! Thanks, Daniel!

mberry28 commented 5 years ago

A follow up: this works by adding topography to the top (despite the 'insert' flag), but it runs until the start of another UNIT file, rather than through the duration of the run. I have tried using cut_all and other flags, but to no avail. Suggestions?

danigeos commented 5 years ago

You are right, a gradual UNIT can only be loaded unit next UNIT.

I wonder: why would you need to have an uplift of the entire domain? the topographic differences & gradients will remain the same and hence the surf. procs. results will be identical. If it is just for graphic purposes, you can just add a constant, time-increasing value to topography within the GMT script.