Lab-0005: Difference between revisions

Revision as of 16:55, 25 August 2020

Sediment Supply to the Global Ocean

Model
HydroTrend

Duration
2.0 hrs

Updated
2020/03/26

Download
download

Run online using:

Jupyter

Contributor(s)

Irina Overeem at INSTAAR - University of Colorado Boulder.

Introduction

In this lab, we use the HydroTrend model to investigate river sediment supply to the ocean by exploring the effects of climate change on river fluxes. We also look at the effect of humans on rivers: the building of a reservoir.

The HydroTrend model is run with the Python Modeling Tool, pymt. Learn more about pymt at: https://pymt.readthedocs.io.

For additional information, see also the spreadsheet lab: https://csdms.colorado.edu/mediawiki/images/RiverFluxtoOceanSpreadsheetLab.zip

Classroom organization
In this lab, we are using a theoretical river basin of ~1990 km², with 1200m of relief and a river length of ~100 km. All parameters that are shown by default once the HydroTrend model is loaded are based on a present-day, temperate climate.

Whereas these runs are not meant to be specific, we are using parameters that are realistic for the Waiapaoa River in New Zealand. The Waiapaoa River, located on North Island, receives high rain and has erodible soils, so the river sediment loads are exceptionally high. It has been called the 'dirtiest small river in the world'. A more detailed description of applying HydroTrend to the Waipaoa basin has been published in Water Resources Research: http://dx.doi.org/10.1029/2006WR005570. To learn more about HydroTrend and its approach to sediment supply modeling, download the presentation listed below.

This lab can be run on the CSDMS JupyterHub. (If you don't already have an account, follow the instructions to sign up at: https://csdms.colorado.edu/wiki/JupyterHub.) Run the lab Notebook by clicking the "start" link under the Run online heading at the top of this page. If you're teaching at an academic institution, you can get CSDMS JupyterHub accounts for students in your class. For more information, please contact us the CSDMS Help Desk: https://github.com/csdms/help-desk.

Download associated file: SedimentSupplyModeling02_2013.ppt
Learn more about HydroTrend and its approach to sediment supply modeling from this presentation.

Learning objectives
Skills

use Pymt to run HydroTrend Model
familiarize with a basic configuration of the HydroTrend Model
make small changes to key input parameters
hands-on experience with visualizing output in Python

Key concepts

explore the HydroTrend base-case river simulation
how does a river system respond to climate change
how do human affect river sediment loads

Lab notes

Launch binder

You can launch binder to directly run the Jupyter Notebook for this lab through a web browser.

>> Open a new browser window and open the Pymt read the docs page at: https://pymt.readthedocs.io/en/latest/examples.html

>> You will see that there are several example models. In this lab we will select the HydroTrend model.

>> Click on the 'Launch Binder' box and it will allow you to see this lab as a Jupyter Notebook.

>> You can execute the Jupyter notebook code cells using shift -enter.

Requirements
--

References

Kettner, A.J., and Syvitski, J.P.M., 2008. HydroTrend version 3.0: a Climate-Driven Hydrological Transport Model that Simulates Discharge and Sediment Load leaving a River System. Computers & Geosciences, 34(10), 1170-1183. doi: 10.1016/j.cageo.2008.02.008

@@ Line 16: / Line 16: @@
 }}
 {{LabIntro
-|LabDescription=Investigate river sediment supply to the ocean by exploring the effects of climate changes on river fluxes. We also look at the effect of humans on rivers: the building of a reservoir.
+|LabDescription=In this lab, we use the HydroTrend model to investigate river sediment supply to the ocean by exploring the effects of climate change on river fluxes. We also look at the effect of humans on rivers: the building of a reservoir.
-See also the spreadsheet lab: https://csdms.colorado.edu/mediawiki/images/RiverFluxtoOceanSpreadsheetLab.zip
+The HydroTrend model is run with the Python Modeling Tool, ''pymt''. Learn more about ''pymt'' at: https://pymt.readthedocs.io.
+<br>
+For additional information, see also the spreadsheet lab: https://csdms.colorado.edu/mediawiki/images/RiverFluxtoOceanSpreadsheetLab.zip
 |LabPicture=Lab3sedsupply.png
 }}
 {{LabClassroomOrganization
-|LabCOIntro=In this lab, we are using a theoretical river basin of ~1990 km<sup>2</sup>, with 1200m of relief and a river length of ~100 km. All parameters that are shown by default once the HydroTrend Model is loaded are based on a present-day, temperate climate.
+|LabCOIntro=In this lab, we are using a theoretical river basin of ~1990 km<sup>2</sup>, with 1200m of relief and a river length of ~100 km. All parameters that are shown by default once the HydroTrend model is loaded are based on a present-day, temperate climate.
-Whereas these runs are not meant to be specific, we are using parameters that are realistic for the Waiapaoa River in New Zealand. The Waiapaoa River is located on North Island and receives high rain and has erodible soils, so the river sediment loads are exceptionally high. It has been called the 'dirtiest small river in the world'. A more detailed description of applying HydroTrend to the Waipaoa basin, New Zealand has been published in WRR: http://dx.doi.org/10.1029/2006WR005570. To learn more about HydroTrend and its approach to sediment supply modeling, you can download the presentation: SedimentSupplyModeling02_2013.ppt.
+Whereas these runs are not meant to be specific, we are using parameters that are realistic for the Waiapaoa River in New Zealand. The Waiapaoa River, located on North Island, receives high rain and has erodible soils, so the river sediment loads are exceptionally high. It has been called the 'dirtiest small river in the world'. A more detailed description of applying HydroTrend to the Waipaoa basin has been published in ''Water Resources Research'': http://dx.doi.org/10.1029/2006WR005570. To learn more about HydroTrend and its approach to sediment supply modeling, download the presentation listed below.
-This lab will run HydroTrend simulation with Python Modeling Tool (Pymt). If you have never used the Pymt, learn how to use it: https://pymt.readthedocs.io/en/latest/install.html. The Pymt allows you to set up simulations and run notebooks.
+This lab can be run on the CSDMS JupyterHub. (If you don't already have an account, follow the instructions to sign up at: https://csdms.colorado.edu/wiki/JupyterHub.) Run the lab Notebook by clicking the "start" link under the Run online heading at the top of this page. If you're teaching at an academic institution, you can get CSDMS JupyterHub accounts for students in your class. For more information, please contact us the CSDMS Help Desk: https://github.com/csdms/help-desk.
-You can create an account at CSDMS JupyterHub and test the Jupyter Notebook for this lab. Please follow the instruction at: https://github.com/csdms/pymt/blob/master/notebooks/README.md. If you are a faculty at an academic institution, it is possible to work with us to get temporary teaching accounts. Work directly with us by emailing: csdms@colorado.edu.
 |LabCOPresentationUpload=SedimentSupplyModeling02_2013.ppt
-|LabCOPresentationText=To learn more about HydroTrend and its approach to sediment supply modeling
+|LabCOPresentationText=Learn more about HydroTrend and its approach to sediment supply modeling from this presentation.
 }}
 {{LabLearningObjectivesSkills