Advanced

Impact of spatial rainfall resolution on point-source solute transport modelling

Selim, Tarek LU ; Persson, Magnus LU and Olsson, Jonas LU (2017) In Hydrological Sciences Journal 62(16). p.2587-2596
Abstract

Numerical simulations of unsaturated solute transport from point sources were carried out using HYDRUS-1D. Three different soil types cropped with spring wheat were considered at three different locations in Sweden: Malmö, Norrköping and Petisträsk. Two types of rainfall data were used, point-scale raingauge measurements and a gauge-adjusted weather radar product at four spatial resolutions, 2 × 2, 6 × 6, 10 × 10 and 14 × 14 km2. The results showed that differences in the mean solute transport depths were small and not significant, with the exception of Petisträsk. Maximum transport depths were in most cases significantly larger using raingauge data compared to radar data. The results showed that using areal-averaged rainfall... (More)

Numerical simulations of unsaturated solute transport from point sources were carried out using HYDRUS-1D. Three different soil types cropped with spring wheat were considered at three different locations in Sweden: Malmö, Norrköping and Petisträsk. Two types of rainfall data were used, point-scale raingauge measurements and a gauge-adjusted weather radar product at four spatial resolutions, 2 × 2, 6 × 6, 10 × 10 and 14 × 14 km2. The results showed that differences in the mean solute transport depths were small and not significant, with the exception of Petisträsk. Maximum transport depths were in most cases significantly larger using raingauge data compared to radar data. The results showed that using areal-averaged rainfall input will give solute transport estimations close to those using point-measured data. This shows the great potential in using radar-measured rainfall data in small-scale hydrological applications.

(Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
CROPWAT, HIPRAD, HYDRUS-1D, Sweden, weather radar, WOFOST
in
Hydrological Sciences Journal
volume
62
issue
16
pages
2587 - 2596
publisher
IAHS Press
external identifiers
  • scopus:85034765244
ISSN
0262-6667
DOI
10.1080/02626667.2017.1403029
language
English
LU publication?
yes
id
b11868b3-0c7c-43bd-a7a1-b894c8488193
date added to LUP
2017-12-08 07:10:19
date last changed
2018-02-19 01:17:12
@article{b11868b3-0c7c-43bd-a7a1-b894c8488193,
  abstract     = {<p>Numerical simulations of unsaturated solute transport from point sources were carried out using HYDRUS-1D. Three different soil types cropped with spring wheat were considered at three different locations in Sweden: Malmö, Norrköping and Petisträsk. Two types of rainfall data were used, point-scale raingauge measurements and a gauge-adjusted weather radar product at four spatial resolutions, 2 × 2, 6 × 6, 10 × 10 and 14 × 14 km<sup>2</sup>. The results showed that differences in the mean solute transport depths were small and not significant, with the exception of Petisträsk. Maximum transport depths were in most cases significantly larger using raingauge data compared to radar data. The results showed that using areal-averaged rainfall input will give solute transport estimations close to those using point-measured data. This shows the great potential in using radar-measured rainfall data in small-scale hydrological applications.</p>},
  author       = {Selim, Tarek and Persson, Magnus and Olsson, Jonas},
  issn         = {0262-6667},
  keyword      = {CROPWAT,HIPRAD,HYDRUS-1D,Sweden,weather radar,WOFOST},
  language     = {eng},
  month        = {12},
  number       = {16},
  pages        = {2587--2596},
  publisher    = {IAHS Press},
  series       = {Hydrological Sciences Journal},
  title        = {Impact of spatial rainfall resolution on point-source solute transport modelling},
  url          = {http://dx.doi.org/10.1080/02626667.2017.1403029},
  volume       = {62},
  year         = {2017},
}