Helgason, Warren D. : rechercher sur Z-Library

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1

Current inventory approach overestimates the effect of irrigated crop management on soil-derived greenhouse gas emissions in the semi-arid Canadian Prairies

David, Cody, Lemke, Reynald, Helgason, Warren, Farrell, Richard E.

Journal:

Agricultural Water Management

Année:

2018

Langue:

english

Fichier:

PDF, 1.90 MB

english, 2018

2

[American Society of Agricultural and Biological Engineers 2013 Kansas City, Missouri, July 21 - July 24, 2013 - ()] 2013 Kansas City, Missouri, July 21 - July 24, 2013 - IMPACT of Irrigation Management Strategy on Sizing of a Solar-powered Center Pivot Irrigation System

HAFIZ FAIZAN AHMED,, WARREN HELGASON,

Année:

2013

Langue:

english

Fichier:

PDF, 159 KB

english, 2013

3

Effects of forest tent caterpillar defoliation on carbon and water fluxes in a boreal aspen stand

Stephens, Jilmarie J., Black, T. Andrew, Jassal, Rachhpal S., Nesic, Zoran, Grant, Nicholas J., Barr, Alan G., Helgason, Warren D., Richardson, Andrew D., Johnson, Mark S., Christen, Andreas

Journal:

Agricultural and Forest Meteorology

Année:

2018

Langue:

english

Fichier:

PDF, 1.74 MB

english, 2018

4

Characteristics of the Near-Surface Boundary Layer within a Mountain Valley during Winter

Helgason, Warren, Pomeroy, John W.

Journal:

Journal of Applied Meteorology and Climatology

Année:

2012

Langue:

english

Fichier:

PDF, 1.09 MB

english, 2012

5

Problems Closing the Energy Balance over a Homogeneous Snow Cover during Midwinter

Helgason, Warren, Pomeroy, John

Journal:

Journal of Hydrometeorology

Année:

2012

Langue:

english

Fichier:

PDF, 1.25 MB

english, 2012

6

Turbulence Characteristics in the Atmospheric Surface Layer for Different Wind Regimes over the Tropical Zongo Glacier (Bolivia,\(16^\circ \)S)

Litt, Maxime, Sicart, Jean-Emmanuel, Helgason, Warren D., Wagnon, Patrick

Journal:

Boundary-Layer Meteorology

Année:

2015

Langue:

english

Fichier:

PDF, 2.54 MB

english, 2015

7

Local scale advection of sensible and latent heat during snowmelt

Harder, Phillip, Pomeroy, John W., Helgason, Warren

Journal:

Geophysical Research Letters

Année:

2017

Langue:

english

Fichier:

PDF, 1.02 MB

english, 2017

8

A study of the atmospheric surface layer and roughness lengths on the high-altitude tropical Zongo glacier, Bolivia

Sicart, Jean Emmanuel, Litt, Maxime, Helgason, Warren, Tahar, Vanessa Ben, Chaperon, Thomas

Journal:

Journal of Geophysical Research Atmospheres

Année:

2014

Langue:

english

Fichier:

PDF, 3.64 MB

english, 2014

9

Modelling the snowpack energy balance during melt under exposed crop stubble

Harder, Phillip, Helgason, Warren D., Pomeroy, John W.

Journal:

Journal of Hydrometeorology

Année:

2018

Langue:

english

Fichier:

PDF, 3.27 MB

english, 2018

10

Spatial Variability of L-Band Brightness Temperature during Freeze/Thaw Events over a Prairie Environment

Roy, Alexandre, Toose, Peter, Derksen, Chris, Rowlandson, Tracy, Berg, Aaron, Lemmetyinen, Juha, Royer, Alain, Tetlock, Erica, Helgason, Warren, Sonnentag, Oliver

Journal:

Année:

2017

Langue:

english

Fichier:

PDF, 2.18 MB

english, 2017

11

An Efficient Calibration Technique for Heat Dissipation Matric Water Potential Sensors

Pan, Xicai, Ireson, Andrew M., Helgason, Warren, Pan Chun, Kwok

Journal:

Soil Science Society of America Journal

Année:

2015

Langue:

english

Fichier:

PDF, 1.37 MB

english, 2015

12

Challenges in Modeling Turbulent Heat Fluxes to Snowpacks in Forest Clearings

Conway, Jonathan P., Pomeroy, John W., Helgason, Warren D., Kinar, Nicholas J.

Journal:

Journal of Hydrometeorology

Année:

2018

Langue:

english

Fichier:

PDF, 1.91 MB

english, 2018

13

Accuracy of snow depth estimation in mountain and prairie environments by an unmanned aerial vehicle

Harder, Phillip, Schirmer, Michael, Pomeroy, John, Helgason, Warren

Journal:

Année:

2016

Langue:

english

Fichier:

PDF, 8.28 MB

english, 2016

14

Bias corrections of precipitation measurements across experimental sites in different ecoclimatic regions of western Canada

Pan, Xicai, Yang, Daqing, Li, Yanping, Barr, Alan, Helgason, Warren, Hayashi, Masaki, Marsh, Philip, Pomeroy, John, Janowicz, Richard J.

Journal:

Année:

2016

Langue:

english

Fichier:

PDF, 6.09 MB

english, 2016

15

A simple model for local-scale sensible and latent heat advection contributions to snowmelt

Harder, Phillip, Pomeroy, John W., Helgason, Warren D.

Journal:

Hydrology and Earth System Sciences

Année:

2019

Langue:

english

Fichier:

PDF, 4.02 MB

english, 2019

16

Implications of stubble management on snow hydrology and meltwater partitioning

Harder, Phillip, Pomeroy, John W., Helgason, Warren D.

Journal:

Canadian Water Resources Journal

Année:

2019

Langue:

english

Fichier:

PDF, 1.59 MB

english, 2019

17

Estimating field-scale root zone soil moisture using the cosmic-ray neutron probe

Peterson, Amber M., Helgason, Warren D., Ireson, Andrew M.

Journal:

Hydrology and Earth System Sciences

Année:

2016

Langue:

english

Fichier:

PDF, 2.93 MB

english, 2016

18

[IEEE IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - Valencia (2018.7.22-2018.7.27)] IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium - Use of L-Band Ground-Based Radiometers for Freeze/Thaw Retrieval in A Boreal Forest Site

Roy, Alexandre, Toose, Peter, Mavrovic, Alex, Pappas, Christoforos, Berg, Aaron, Rowlandson, Tracy, Derksen, Chris, Royer, Alain, El-Amine, Mariam, Helgason, Warren, Barr, Alan, Sonnentag, Oliver

Année:

2018

Langue:

english

Fichier:

PDF, 424 KB

english, 2018

19

Joint modeling of crop and irrigation in the Central United States using the NoahâMP land surface model

Zhang, Zhe, Barlage, Michael, Chen, Fei, Li, Yanping, Helgason, Warren, Xu, Xiaoyu, Liu, Xing, Li, Zhenhua

Journal:

Journal of Advances in Modeling Earth Systems

Année:

2020

Fichier:

PDF, 2.41 MB

2020