Skip to content
No description, website, or topics provided.
MATLAB Rich Text Format
Branch: master
Clone or download
dfhkvs Merge pull request #1 from nina-aragon/patch-1
Update dfhill_swe_calculator.m
Latest commit d3e6fb1 Jul 29, 2019
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
LICENSE Initial commit Nov 13, 2018
README.md Update README.md Jul 16, 2019
data_readme.rtf Add files via upload Jul 16, 2019
dfhill_swe_calculator.m Update dfhill_swe_calculator.m Jul 27, 2019
ppt_wt_final.txt.zip Add files via upload Jul 16, 2019
td_final.txt.zip Add files via upload Jul 16, 2019

README.md

snowdensity

We have prepared a simple function in Matlab that will calculate snow water equivalent
based on day, month, year, lat, lon, and snow depth at the observation point. In this
repo you will find a single matlab (.m) function file, two zipped ESRI ASCII grid files,
and one (.rtf) file with information about the grid files. The grids contain climatological
normals of winter precipitation (Dec-Jan-Feb) and temperature difference (diff between
mean T of warmest month and mean T of coldest month). To use, unzip the grids and place
them in the same location as the matlab file.

The function information is below.

function [SWE,DOY] = dfhill_swe_calculator(Y,M,D,H,LAT,LON)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%This function implements a power law regression in order to produce a
%value of snow water equivalent (SWE) based on various parameters
%associated with a snow depth measurement. The input variables can be
%scalars (single measurement) or vectors (batch measurements). The
%following information on units, etc., is critical.

%David Hill, Oregon State University
%June 2019

%SWE (output) - snow water equivalent (mm)
%H - snow depth (mm)
%Y - year
%M - month (1 --> 12)
%D - day (1 --> 31 (or 28, or 30, as appropriate))
%LAT - latitude. Positive for N. Hem.
%LON - longitude (signed). So, -120 or so for North America.
%DOY - day of water year (Oct 1 is the origin, i.e. DOY=1)
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

You can’t perform that action at this time.