Skookum Creek Watershed Observatory with upscaled hydrometeorology and downscaled gridded climate forcings


Authors:
Owners:
Resource type: Composite Resource
Storage: The size of this resource is 585.7 KB
Created: Apr 17, 2020 at 4:48 p.m.
Last updated: Aug 04, 2020 at 5:38 p.m.
Citation: See how to cite this resource
Sharing Status: Public
Views: 265
Downloads: 7
+1 Votes: Be the first one to 
 this.
Comments: No comments (yet)

Abstract

Evaluating the future change in the hydrologic response of rivers is typically carried out using a complex sequence of linked numerical models starting with climate projections by general circulations models (GCMs) with various assumptions about emissions scenarios on radiation (representative concentration pathways (RCPs), downscaling using statistical methods, or dynamic downscaling using nested regional climate models (RCMs), bias correction of selected downscaled hydrometeorological variables of interest using observed data sets (e.g. precipitation and temperature from gridded station data), and finally use of the bias corrected meteorological forcing as inputs to hydrologic models to simulate hydrologic change and various impacts. To address the issues encountered in the Pacific Northwest, Skagit and Nooksack basin studies, and mountain environments in general we have developed a hybrid approach which bias-corrects and combines simulated data from high-resolution regional climate models (RCMs) with long-term gridded interpolations of in situ data from weather stations. This is achieved by focusing on two primary objectives: 1) removing bias in the atmospheric model, while preserving the temperature and precipitation gradients in the physically based simulations, and 2) preserving the spatio-temporal correlations and time series characteristics of the gridded meteorological records based on station observations. The computational methods employed are intended to be flexible and (where the supporting data sets are available) can be broadly applied in support of hydrologic modeling in mountain environments. Substantial improvements in streamflow simulations in the Skagit case study provide proof of concept that temperature and precipitation bias at moderate to high elevation is effectively reduced by the new hybrid data processing approach and greatly improved model predictions, but the size of the dataset is massively large for investigating the details of the methods. This dataset and code is designed for tutorial and illustrations using the Skookum Creek watershed.

!! Disclaimer: Work in progress. !!
Sample dataset for demonstrating the methods in the upscaling-downscaling paper by
View this Google Map: https://www.google.com/maps/d/edit?mid=1MwvcMk2UvEO8K4NGTM_3jGzXGkxOL-81&ll=48.67006706749427%2C-122.2752676685605&z=10

Subject Keywords

Deleting all keywords will set the resource sharing status to private.

Resource Level Coverage

Spatial

Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Skookum Creek Watershed
North Latitude
48.7444°
East Longitude
-121.9341°
South Latitude
48.6302°
West Longitude
-122.1779°

Content

README.md

Software Instructions: Online and Personal Computer

INTERACTIVE! You won't regret clicking on this badge. Binder

To open interactive Jupyter Notebooks with Binder JupyterHub server. You will be connected to a virtual machine with the software environment required to execute the models.

Online Modeling Instructions

To open interactive Jupyter Notebooks with the CUAHSI JupyterHub server, go to the upper right corner of the resource page and click on 'Open With'. Select CUAHSI JupyterHub. You will be connected to a virtual machine with the software environment required to execute the models.

Notebook 1: Learn about Observatory functions applied to Skookum Creek in the Nooksack Watershed. OGH_skookum_hybrid_2020417.ipynb

Personal Computer Installation Instructions

Packages

The notebooks included in this resource require the following Python 3 packages:

``` geopandas==0.5.0

dask==1.2.0

hs_restclient==1.3.5

hstools==0.0.1

descartes==1.1.0

landlab==1.10.0

```

To ensure that you have the correct packages and versions, run the following command(s) inside a Python terminal:

$ conda list

or

$ pip list

Creating a Working Environment

We recommend using Anaconda to create a fresh Python environment with all dependencies installed. After installing Anaconda, simply run the commands below with your desired environment name in place of MY_ENVIRONMENT_NAME:

conda create -n MY_ENVIRONMENT_NAME --file requirements.txt

activate the environment and start a jupyter server

source activate MY_ENVIRONMENT_NAME jupyter notebook

Debugging a Working Environment

Are you getting errors? Here are some suggested steps. If you still have issues, email help@cuahsi.org or reach out to us (comment on this resource or see emails in HydroShare profiles) and we will invite you to the HydroShare Slack #landlab channel.

Bug: PackagesNotFound

PackagesNotFoundError: The following packages are not available from current channels.

Reduce the number of packages that were not available by running the following command

conda config --append channels conda-forge

Bug: Conda vs.Pip Install

If you get errors for a few packages, remove them from the requirements.txt file until you successfully created the conda environment.

conda create -n MY_ENVIRONMENT_NAME --file requirements.txt

Any packages that didn't get installed during creation of conda environment can be pip installed separately in the newly created conda environment. for example:

pip install hs-restclient==1.3.5

Reproducible Quote of the Day:

"The product of mental labor - science - always stands far below its value, because the labor-time necessary to reproduce it has no relation at all to the labor-time required for its original production." Karl Marx

Additional Metadata

Name Value
appkey mybinder

How to Cite

Bandaragoda, C. (2020). Skookum Creek Watershed Observatory with upscaled hydrometeorology and downscaled gridded climate forcings, HydroShare, http://www.hydroshare.org/resource/88e1efee05fe480aa8ad19e9449e2542

This resource is shared under the Creative Commons Attribution CC BY.

 http://creativecommons.org/licenses/by/4.0/
CC-BY

Comments

There are currently no comments

New Comment

required