Research Explorer

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Researcher

Hans Lievens

48 Results

2021

Sentinel-1 backscatter assimilation using support vector regression or the water cloud model at European soil moisture sites

Dominik RainsHans LievensGabrielle J. M. De LannoyMatthew F. McCabeRichard A. M. de JeuDiego Miralles

A1 Journal Article in IEEE GEOSCIENCE AND REMOTE SENSING LETTERS

2020

Assimilation of Soil Moisture and Ocean Salinity (SMOS) brightness temperature into a large-scale distributed conceptual hydrological model to improve soil moisture predictions : the Murray-Darling basin in Australia as a test case

Renaud HostacheDominik RainsKaniska MallickMarco ChiniRamona PelichHans LievensFabrizio FeniciaGiovanni CoratoNiko VerhoestPatrick Matgen

A1 Journal Article in HYDROLOGY AND EARTH SYSTEM SCIENCES

Sentinel-1 detects firn aquifers in the Greenland ice sheet

I BrangersHans LievensC. MiegeMatthias DemuzereL. BruckerG. J. M. De Lannoy

A1 Journal Article in GEOPHYSICAL RESEARCH LETTERS

2019

Assessing the value of remote sensing and in situ data for flood inundation forecasts

Alexandra Van WesemaelNiko VerhoestHans Lievens

Improving flood inundation forecasts through the assimilation of in situ floodplain water level measurements based on alternative observation network configurations

Alexandra Van WesemaelLisa LanduytHans LievensNiko Verhoest

A1 Journal Article in ADVANCES IN WATER RESOURCES

L-band brightness temperature assimilation into a distributed hydrological model : application to the Community Land Model over Australia

Dominik RainsNiko VerhoestHans Lievens

Magnitude and variability of terrestrial evaporation from satellites and climate reanalyses

Brecht MartensDiego Gonzalez MirallesNiko VerhoestHans Lievens

Snow depth variability in the Northern Hemisphere mountains observed from space

Hans LievensMatthias DemuzereHans-Peter MarshallRolf H ReichleLudovic BruckerIsis BrangersPatricia de RosnayMarie DumontManuela GirottoWalter W ImmerzeelTobias JonasEdward J KimInka KochChristoph MartyTuomo SalorantaJohannes SchöberGabrielle JM De Lannoy

A1 Journal Article in NATURE COMMUNICATIONS

2018

SMOS and SMAP brightness temperature assimilation over the Murrumbidgee Basin

Dominik RainsGabrielle JM De LannoyHans LievensJeffrey P WalkerNiko Verhoest

A1 Journal Article in IEEE GEOSCIENCE AND REMOTE SENSING LETTERS

Snow estimation under a vegetation gradient using satellite remote sensing data and land surface modeling during SnowEx 2017

Gabrielle De LannoyAnouck VanrykelHans LievensEd KimLudovic Brucker

2017

Assimilation of global radar backscatter and radiometer brightness temperature observations to improve soil moisture and land evaporation estimates

Hans LievensBrecht MartensNiko VerhoestS HahnRH ReichleDiego Gonzalez Miralles

A1 Journal Article in REMOTE SENSING OF ENVIRONMENT

Evaluation of the Oh, Dubois and IEM backscatter models using a large dataset of SAR data and experimental soil measurements

Mohammad ChokerNicolas BaghdadiMehrez ZribiMohammad El HajjSimonetta PalosciaNiko VerhoestHans LievensFrancesco Mattia

A1 Journal Article in WATER

GLEAM v3 : satellite-based land evaporation and root-zone soil moisture

Brecht MartensDiego Gonzalez MirallesHans LievensRobin van der SchalieRichard AM de JeuDiego Fernández-PrietoHylke E BeckWouter DorigoNiko Verhoest

A1 Journal Article in GEOSCIENTIFIC MODEL DEVELOPMENT

Global assessment of the SMAP level-4 surface and root-zone soil moisture product using assimilation diagnostics

Rolf H. ReichleGabrielle J. M. De LannoyQing LiuRandal D. KosterJohn S. KimballWade T. CrowJoseph V. ArdizzonePurnendu ChakrabortyDouglas W. CollinsAustin L. ConatyManuela GirottoLucas A. JonesJana KolassaHans LievensRobert A. LucchesiEdmond B. Smith

A1 Journal Article in JOURNAL OF HYDROMETEOROLOGY

Impact of the timing of a SAR image acquisition on the calibration of a flood inundation model

Sacha GobeynAlexandra Van WesemaelJeffrey NealHans LievensKatrien Van EerdenbrughNiels De VleeschouwerHilde VernieuweGuy J-P SchumannGiuliano Di BaldassarreBernard De BaetsPaul D BatesNiko Verhoest

A1 Journal Article in ADVANCES IN WATER RESOURCES

Influence of surface roughness measurement scale on radar backscattering in different agricultural soils

Alex Martinez-AgirreJesús Álvarez-MozosHans LievensNiko Verhoest

A1 Journal Article in IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

Influence of surface roughness sample size for C-band SAR backscatter applications on agricultural soils

Alex Martinez-AgirreJesús Álvarez-MozosHans LievensNiko VerhoestRafael Giménez

A1 Journal Article in IEEE GEOSCIENCE AND REMOTE SENSING LETTERS

Joint Sentinel-1 and SMAP data assimilation to improve soil moisture estimates

Hans LievensRH ReichleQ LiuGJM De LannoyRS DunbarSB KimNN DasM CoshJP WalkerW Wagner

A1 Journal Article in GEOPHYSICAL RESEARCH LETTERS

New empirical model for radar scattering from bare soils

Nicolas BaghdadiMohammad ChokerMehrez ZribiMohammad El HajjSimonetta PalosciaNiko VerhoestHans LievensFrederic BaupFrancesco Mattia

SMOS brightness temperature assimilation into the Community Land Model

Dominik RainsXujun HanHans LievensCarsten MontzkaNiko Verhoest

A1 Journal Article in HYDROLOGY AND EARTH SYSTEM SCIENCES

2016

A new empirical model for radar scattering from bare soil surfaces

Nicolas BaghdadiMohammad ChokerMehrez ZribiMohammad El HajjSimonetta PalosciaNiko VerhoestHans LievensFrederic BaupFrancesco Mattia

A1 Journal Article in REMOTE SENSING

Assimilation of SMOS soil moisture and brightness temperature products into a land surface model

Hans LievensGJM De LannoyA Al BitarM DruschG DumedahH-J Hendricks FranssenYH KerrSK TomerBrecht MartensO MerlinM PanJK RoundyH VereeckenJP WalkerEF WoodNiko VerhoestVRN Pauwels

A1 Journal Article in REMOTE SENSING OF ENVIRONMENT

ESA's Soil Moisture and Ocean Salinity mission : from science to operational applications

S MecklenburgM DruschL KaleschkeN Rodriguez-FernandezN ReulY KerrJ FontM Martin-NeiraR OlivaE Daganzo-EusebioJP GrantR SabiaG MacelloniK RautiainenJ FausteP de RosnayJ Munoz-SabaterNiko VerhoestHans LievensS DelwartR CrapolicchioA de la FuenteM Kornberg

A1 Journal Article in REMOTE SENSING OF ENVIRONMENT

Improving terrestrial evaporation estimates over continental Australia through assimilation of SMOS soil moisture

Brecht MartensDiego Gonzalez MirallesHans LievensD Fernández-PrietoNiko Verhoest

A1 Journal Article in INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION

2015

Copula-based downscaling of coarse-scale soil moisture observations with implicit bias correction

Niko VerhoestMartinus van den BergBrecht MartensHans LievensEric F WoodMing PanYann H KerrAhmad Al BitarSat K TomerMatthias DruschHilde VernieuweBernard De BaetsJeffrey P WalkerGift DumedahValentijn Pauwels

A1 Journal Article in IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

Estimating effective roughness parameters of the L-MEB model for soil moisture retrieval using passive microwave observations from SMAPVEX12

Brecht MartensHans LievensAndreas CollianderThomas J JacksonNiko Verhoest

A1 Journal Article in IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

Optimization of a radiative transfer forward operator for simulating SMOS brightness temperatures over the Upper Mississippi Basin

Hans LievensA Al BitarNiko VerhoestF CabotGJM De LannoyM DruschG DumedahHJH FranssenY KerrSK TomerBrecht MartensO MerlinM PanMartinus van den BergH VereeckenJP WalkerEF WoodVRN Pauwels

A1 Journal Article in JOURNAL OF HYDROMETEOROLOGY

SMOS soil moisture assimilation for improved hydrologic simulation in the Murray Darling Basin, Australia

Hans LievensSK TomerA Al BitarGJM De LannoyM DruschG DumedahH-J Hendricks FranssenYH KerrBrecht MartensM PanJK RoundyH VereeckenJP WalkerEF WoodNiko VerhoestVRN Pauwels

A1 Journal Article in REMOTE SENSING OF ENVIRONMENT

Semi-empirical calibration of the integral equation model for co-polarized L-band backscattering

Nicolas BaghdadiMehrez ZribiSimonetta PalosciaNiko VerhoestHans LievensFrederic BaupFrancesco Mattia

A1 Journal Article in REMOTE SENSING

Semi-empirical calibration of the integral equation model for co-polarized L-band backscattering

Nicolas BaghdadiMehrez ZribiSimonetta PalosciaNiko VerhoestHans LievensFrederic BaupFrancesco Mattia

Sensitivity of C-band backscatter to surface roughness parameters measured at different scales

Alex Martínez-AgirreJesús Álvarez-MozosHans LievensNiko VerhoestRafael Giménez

2013

An alternative roughness parameterization for soil moisture retrievals from passive microwave observations

Brecht MartensHans LievensJeff P WalkerR PancieraM TanaseA MonerrisY GaoX WuNiko Verhoest

Soil moisture retrieval from synthetic aperture radar: facing the soil roughness parameterization problem

Niko VerhoestHans Lievens

Bookchapter in Remote sensing of energy fluxes and soil moisture content

2012

Accounting for seasonality in a soil moisture change detection algorithm for ASAR Wide Swath time series

Jasper Van doninckJan PetersHans LievensBernard De BaetsNiko Verhoest

A1 Journal Article in HYDROLOGY AND EARTH SYSTEM SCIENCES

Assessment of SAR-retrieved soil moisture uncertainty induced by uncertainty on modeled soil surface roughness

Eva De KeyserHilde VernieuweHans LievensJ Álvarez-MozosBernard De BaetsNiko Verhoest

A1 Journal Article in INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION

Random forests as a tool for estimating uncertainty at pixel-level in SAR image classification

Lien LoosveltJan PetersHenning SkriverHans LievensFrieke VancoillieBernard De BaetsNiko Verhoest

A1 Journal Article in INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION

Spatial and temporal soil moisture estimation from RADARSAT-2 imagery over Flevoland, The Netherlands

Hans LievensNiko Verhoest

A1 Journal Article in JOURNAL OF HYDROLOGY

2011

Effective roughness modelling as a tool for soil moisture retrieval from C-and L-band SAR

Hans LievensNiko VerhoestEva De KeyserHilde VernieuweP MatgenJ Alvarez-MozosBernard De Baets

A1 Journal Article in HYDROLOGY AND EARTH SYSTEM SCIENCES

On the retrieval of soil moisture in wheat fields from L-band SAR based on water cloud modeling, the IEM, and effective roughness parameters

Hans LievensNiko Verhoest

A1 Journal Article in IEEE GEOSCIENCE AND REMOTE SENSING LETTERS

Possibilistic soil roughness identification for uncertainty reduction on SAR-retrieved soil moisture

Hilde VernieuweNiko VerhoestHans LievensBernard De Baets

A1 Journal Article in IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING

Soil moisture retrieval from radar remote sensing using alternative approaches to surface roughness measurements

Hans LievensNiko Verhoest

Training neural networks on artificially generated data: a novel approach to SAR speckle removal

Frieke VancoillieHans LievensIsabelle JoosAleksandra PizuricaLieven VerbekeRobert De WulfNiko Verhoest

A1 Journal Article in INTERNATIONAL JOURNAL OF REMOTE SENSING

2009

Error in radar-derived soil moisture due to roughness parameterization: an analysis based on synthetical surface profiles

Hans LievensHilde VernieuweJesus Alvarez-MozosBernard De BaetsNiko Verhoest

A1 Journal Article in SENSORS

SAR speckle removal by neural networks trained on artificially generated data

Frieke VancoillieHans LievensIsabelle JoosAleksandra PizuricaLieven VerbekeRobert De WulfNiko Verhoest

2008

On the soil roughness parameterization problem in soil moisture retrieval of bare surfaces from synthetic aperture radar

Niko VerhoestHans LievensW WAGNERJ ALVAREZ-MOZOSMS MORANF MATTIA

A1 Journal Article in SENSORS

Remote sensing and wetland ecology: a South African case study

ER DE ROECKNiko VerhoestMH MIYAHans LievensO BATELAANA THOMASL BRENDONCK

A1 Journal Article in SENSORS

Soil moisture retrieval from co-polarized ALOS PALSAR backscattering in the Zwalm and Alzette catchments

Hans LievensHilde VernieuweNiko VerhoestBernard De BaetsP MatgenM MontanariL HoffmannF Mattia

2007

Detection of small non-vegetated wetlands in the Cape Flats, South Africa, using Envisat ASAR imagery

Hans LievensToon WestraLieven VerbekeNiko VerhoestRobert De WulfA ThomasE De RoeckL Brendonck