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Karem Chokmani

Areas of expertise

Remote sensing and hydrology

Eau Terre Environnement Research Centre

490 de la Couronne Street
Québec City, Quebec  G1K 9A9

See the research centre

Research interests

Professor Chokmani’s work focuses on the development of methods for using remote sensing data and geomatics tools to estimate and monitor water resources, both locally and regionally. His research interests combine in situ observation methods, statistical modelling, the synoptic quality of remote sensing data and the spatial processing capacity of geomatic tools.

The experimental part of his approach studies the interaction between electromagnetic radiation and freshwater in all states (liquid, snow, ice). The applied part focuses on the development of algorithms to track key components of the hydrological cycle, representative parameters of water demand and use, effluent quality, and impacts on aquatic environments.


Martins, Sarah, Lhissou, Rachid, Chokmani, Karem & Cambouris, Athyna N. (2023). Determining the beginning of potato tuberization period using plant height detected by drone for irrigation purposes. Agronomy, 13 (2): Art. 492.
DOI: 10.3390/agronomy13020492

Noyola Medrano, Cristina, Homayouni, Saeid & Chokmani, Karem (2023). Google Earth Engine, una aplicación inteligente en el análisis geoespacial. Revista Universitarios Potosinos, 273: 28-34.

Ratté-Fortin, Claudie, Plante, Jean-François, Rousseau, Alain N. & Chokmani, Karem (2023). Parametric versus nonparametric machine learning modelling for conditional density estimation of natural events: Application to harmful algal blooms. Ecological Modelling, 482: Art. 110415.
DOI: 10.1016/j.ecolmodel.2023.110415

Sahraei, Roya, Kanani-Sadat, Yousef, Homayouni, Saeid, Safari, Abdolreza, Oubennaceur, Khalid & Chokmani, Karem (2023). A novel hybrid GIS-based multi-criteria decision-making approach for flood susceptibility analysis in large ungauged watersheds. Journal of Flood Risk Management, 16 (2): Art. e12879.
DOI : 10.1111/jfr3.12879

Barbouchi, Meriem, Chaabani, Chayma, M’hamed, Hatem Cheikh, Abdelfattah, Riadh, Lhissou, Rachid, Chokmani, Karem, Ben Aissa, Nadhira, Annabi, Mohamed & Bahri, Haithem (2022). Wheat water deficit monitoring using synthetic aperture radar backscattering coefficient and interferometric coherence. Agriculture, 12 (7): Art. 1032.
DOI: 10.3390/agriculture12071032

Barbouchi, Meriem, Lhissou, Rachid, Abdelfattah, Riadh, El Alem, Anas, Chokmani, Karem, Ben Aissa, Nadhira, M’hamed, Hatem Cheikh, Annabi, Mohamed & Bahri, Haithem (2022). The potential of using Radarsat-2 satellite image for modeling and mapping wheat yield in a semiarid environment. Agriculture, 12 (3): Art. 315.
DOI: 10.3390/agriculture12030315

El Alem, Anas & Chokmani, Karem (2022). A machine learning-based regional hybrid model for remote retrieving turbidity from landsat imagery. IEEE Geoscience and Remote Sensing Letters, 19: Art. 8021605.
DOI: 10.1109/LGRS.2021.3115986

El Alem, Anas, Hmaissia, Amal, Chokmani, Karem & Cambouris, Athyna N. (2022). Quantitative study of the effect of water content on soil texture parameters and organic matter using proximal visible-near infrared spectroscopy. Remote Sensing, 14 (15): Art. 3510.
DOI: 10.3390/rs14153510

El Oufir, Mohamed Karim, Chokmani, Karem, El Alem, Anas & Bernier, Monique (2022). Using ensemble-based systems with near-infrared hyperspectral data to estimate seasonal snowpack density. Remote Sensing, 14 (5): Art. 1089.
DOI: 10.3390/rs14051089

Madaeni, Fatemehalsadat, Chokmani, Karem, Lhissou, Rachid, Homayouni, Saeid, Gauthier, Yves & Tolszczuk-Leclerc, Simon (2022). Convolutional neural network and long short-term memory models for ice-jam prediction. The Cryosphere, 16: 1447-1468.
DOI: 10.5194/tc-16-1447-2022

Oubennaceur, Khalid, Chokmani, Karem, Lessard, Florence, Gauthier, Yves, Baltazar, Catherine & Toussaint, Jean-Patrick (2022). Understanding flood risk perception: A case study from Canada. Sustainability, 14 (5): Art. 3057.
DOI: 10.3390/su14053087

Perreault, Simon, El Alem, Anas, Chokmani, Karem & Cambouris, Athyna N. (2022). Development of pedotransfer functions to predict soil physical properties in Southern Quebec (Canada). Agronomy, 12 (2): Art. 526.
DOI: 10.3390/agronomy12020526

Ratté-Fortin, Claudie, Chokmani, Karem, El Alem, Anas & Laurion, Isabelle (2022). A regional model to predict the occurrence of natural events: Application to phytoplankton blooms in continental waterbodies. Ecological Modelling, 473: Art. 110137.
DOI: 10.1016/j.ecolmodel.2022.110137

El Alem, Anas, Chokmani, Karem, Venkatesan, Aarthi, Lhissou, Rachid, Agili, Hachem & Dedieu, Jean-Pierre (2021). How accurate is an unmanned aerial vehicle data-based model applied on satellite imagery for chlorophyll-a estimation in freshwater bodies?. Remote Sensing, 13 (6): Art. 1134.
DOI: 10.3390/rs13061134

El Alem, Anas, Lhissou, Rachid, Chokmani, Karem & Oubennaceur, Khalid (2021). Remote retrieval of suspended particulate matter in inland waters: Image-based or physical atmospheric correction models?. Water, 13 (16): Art. 2149.
DOI: 10.3390/w13162149

El Oufir, Mohamed Karim, Chokmani, Karem, El Alem, Anas & Bernier, Monique (2021). Estimating snowpack density from near-infrared spectral reflectance using a hybrid model. Remote Sensing, 13 (20): Art. 4089.
DOI: 10.3390/rs13204089

El Oufir, Mohamed Karim, Chokmani, Karem, El Alem, Anas, Agili, Hachem & Bernier, Monique (2021). Seasonal snowpack classification based on physical properties using near-infrared proximal hyperspectral data. Sensors, 21 (16): Art. 5259.
DOI: 10.3390/s21165259

Lajili, Abdelkarim, Cambouris, Athyna N., Chokmani, Karem, Duchemin, Marc, Perron, Isabelle, Zebarth, Bernie J., Biswas, Asim & Adamchuck, Vlacheslav I. (2021). Analysis of four delineation methods to identify potential management zones in a commercial potato field in Eastern Canada. Agronomy, 11 (3): Art. 432.
DOI: 10.3390/agronomy11030432

Oubennaceur, Khalid, Chokmani, Karem, El Alem, Anas & Gauthier, Yves (2021). Flood risk communication using ArcGIS StoryMaps. Hydrology, 8 (4): Art. 152.
DOI: 10.3390/hydrology8040152

Oubennaceur, Khalid, Chokmani, Karem, Gauthier, Yves, Ratté-Fortin, Claudie, Homayouni, Saeid & Toussaint, Jean-Patrick (2021). Flood risk assessment under climate change: The Petite Nation River watershed. Climate, 9 (8): Art. 125.
DOI: 10.3390/cli9080125

Salgado, Hector, Zabala, Stella Maris, Romay, Catalina, Bernier, Monique & Chokmani, Karem (2021). Estimación de la humedad superficial del suelo mediante datos sar en banda X / Surface soil moisture estimation with X band SAR data. Meteorologica, 46 (1): 1-11.
DOI: 10.24215/1850468Xe001

Madaeni, Fatemehalsadat; Lhissou, Rachid; Chokmani, Karem; Raymond, Sébastien & Gauthier, Yves (2020). Ice jam formation, breakup and prediction methods based on hydroclimatic data using artificial intelligence: A review. Cold Reg. Sci. Technol., 174 (Juin): Art. 103032.
DOI: 10.1016/j.coldregions.2020.103032

Ratté-Fortin, Claudie; Chokmani, Karem & Laurion, Isabelle (2020). Spatiotemporal variability in phytoplankton bloom phenology in Eastern Canadian Lakes related to physiographic, morphologic, and climatic drivers. Environments, 7 (10): Art. 77.
DOI: 10.3390/environments7100077

Sena, Guillaume Noumonvi Yawu; Chokmani, Karem; Gloaguen, Erwan & Bernier, Monique (2020). Multi-scale spatialization of snow water equivalent (SWE) according to their spatial structures in eastern Canada. Cryosphere Discuss., ONLINE.
DOI: 10.5194/tc-2020-316

Yavari, Adel; Homayouni, Saeid; Oubennaceur, Khalid & Chokmani, Karem (2020). Flood inundation modeling in ungauged basins using Unmanned Aerial Vehicles imagery. Earth Obs. Geomat. Eng., 4 (1): 44-45.
DOI: 10.22059/eoge.2020.297824.1075

El Alem, Anas; Chokmani, Karem; Laurion, Isabelle; El Adlouni, Salah-Eddine; Raymond, Sébastien & Ratté-Fortin, Claudie (2019). Ensemble-based systems to monitor algal bloom with remote sensingIEEE Trans. Geosci. Remote Sens., 57 (10): 7955-7971.
DOI: 10.1109/TGRS.2019.2917636

Gignac, Charles; Bernier, Monique & Chokmani, Karem (2019). ICEPAC – A probabilistic tool to study sea ice spatiotemporal dynamic: application to the Hudson Bay area, northeastern CanadaCryosphere, 13 (2): 451-468.
DOI: 10.5194/tc-13-451-2019

Oubennaceur, Khalid; Chokmani, Karem; Nastev, Miroslav; Gauthier, Yves; Poulin, Jimmy; Tanguy, Marion; Raymond, Sébastien & Lhissou, Rachid (2019). New sensitivity indices of a 2D flood inundation model using gauss quadrature samplingGeosciences, 9 (5): Art. 220.
DOI: 10.3390/geosciences9050220

Oubennaceur, Khalid; Chokmani, Karem; Nastev, Miroslav; Lhissou, Rachid & El Alem, Anas (2019). Flood risk mapping for direct damage to residential buildings in Quebec, CanadaInt. J. Disast. Risk Re., 33: 44-54.
DOI: 10.1016/j.ijdrr.2018.09.007

Sena, Guillaume Noumonvi Yawu; Chokmani, Karem; Gloaguen, Erwan & Bernier, Monique (2019). Critical analysis of the snow survey network according to the spatial variability of snow water equivalent (swe) on Eastern Mainland CanadaHydrology, 6 (2): Art. 55.
DOI: 10.3390/hydrology6020055

Chaabani, Chayma; Chini, Marco; Abdelfattah, Riadh; Hostache, Renaud & Chokmani, Karem (2018). Flood mapping in a complex environment using bistatic TanDEM-X/TerraSAR-X InSAR coherenceRemote Sens., 10 (12): Art. 1873.
DOI: 10.3390/rs10121873

Novoa, Julia; Chokmani, Karem & Lhissou, Rachid (2018). A novel index for assessment of riparian strip efficiency in agricultural landscapes using high spatial resolution satellite imagerySci. Total Environ., 644: 1439-1451.
DOI: 10.1016/j.scitotenv.2018.07.069

Oubennaceur, Khalid; Chokmani, Karem; Nastev, Miroslav; Tanguy, Marion & Raymond, Sébastien (2018). Uncertainty analysis of a two-dimensional hydraulic modelWater, 10 (3): Art. 272.
DOI: 10.3390/w10030272

Oubennaceur, Khalid; Chokmani, Karem; Nastev, Miroslav; Tanguy, Marion & Raymond, Sébastien (2018). Correction: Oubennaceur, K., & al. Uncertainty Analysis of a Two-Dimensional Hydraulic ModelWater, 10 (3): Art. 1071.
DOI: 10.3390/w10081071

Perron, Isabelle; Cambouris, Athyna N.; Chokmani, Karem; Vargas Gutierrez, Felipe Miguel; Zebarth, Bernie J.; Moreau, Gilles; Biswas, Asim & Adamchuck, Vlacheslav I. (2018). Delineating soil management zones using a proximal soil sensing system in two commercial potato fields in New Brunswick, CanadaCan. J. Soil Sci. / Rev. Can. Sci. Sol, 98 (4): 724-737.
DOI: 10.1139/CJSS-2018-0063

Ratté-Fortin, Claudie; Chokmani, Karem & El Alem, Anas (2018). A novel algorithm of cloud detection for water quality studies using 250 m downscaled MODIS imageryInt. J. Remote Sens., 39 (19): 6429-6439.
DOI: 10.1080/01431161.2018.1460506

De Munck, Stéphane; Gauthier, Yves; Bernier, Monique; Chokmani, Karem & Légaré, Serge (2017). River predisposition to ice jams: a simplified geospatial modelNat. Hazards Earth Syst. Sci., 17 (7): 1033-1047.
DOI: 10.5194/nhess-17-1033-2017

Gignac, Charles; Bernier, Monique; Chokmani, Karem & Poulin, Jimmy (2017). IceMap250 – Automatic 250 m sea ice extent mapping using MODIS dataRemote Sens., 9 (1): Art. 70.
DOI: 10.3390/rs9010070

Tanguy, Marion; Chokmani, Karem; Bernier, Monique; Poulin, Jimmy & Raymond, Sébastien (2017). River flood mapping in urban areas combining Radarsat-2 data and flood return period dataRemote Sens. Environ., 198 (Septembre) .
DOI: 10.1016/j.rse.2017.06.042

El Harti, Abderrazak; Lhissou, Rachid; Chokmani, Karem; Ouzemou, Jamal-eddine; Hassouna, Mohamed; Bachaoui, El Mostafa & El Ghmaria, Abderrahmene (2016). Spatiotemporal monitoring of soil salinization in irrigated Tadla Plain (Morocco) using satellite spectral indicesInt. J. Appl. Earth Observ. Geoinfo., 50 (Août): 64-73.
DOI: 10.1016/j.jag.2016.03.008

Filion, Rébecca; Bernier, Monique; Paniconi, Claudio; Chokmani, Karem; Melis, Massimo; Soddu, Antonio; Talazac, Manon & Lafortune, François-Xavier (2016). Remote sensing for mapping soil moisture and drainage potential in semi-arid regions: Applications to the campidano plain of Sardinia, ItalySci. Total Environ., 543 (Part B): 862-876.
DOI: 10.1016/j.scitotenv.2015.07.068

Sena, Guillaume Noumonvi Yawu; Chokmani, Karem; Gloaguen, Erwan & Bernier, Monique (2016). Analyse multi-échelles de la variabilité spatiale de l’équivalent en eau de la neige (EEN) sur le territoire de l’Est du CanadaHydrol. Sci. J., 62 (3): 359-377.
DOI: 10.1080/02626667.2015.1022552

Barbouchi, M.; Abdelfattah, R.; Chokmani, K.; Ben Aissa, N.; Lhissou, R. & El Harti, A. (2015). Soil salinity characterization using polarimetric InSAR Coherence: Case studies in Tunisia and MoroccoIEEE J. Sel. Top. Appl. Earth Observ. Remote Sens., 8 (8): 3823-3832.
DOI: 10.1109/JSTARS.2014.2333535

Ikani, Vahid; Chokmani, Karem; Turcotte, Caroline; Ferland, Martin; Rainville, Ève & Granberg, Hardy (2015). Micrometeorological observations for the evaluation of the selective inverted sink against radiation frost and the potential of a new hybrid systemProcedia Earth Planet. Sci., 15 (2015): 920-927.
DOI: 10.1016/j.proeps.2015.08.147

Morier, T.; Cambouris, A. N. & Chokmani, K. (2015). In-season nitrogen status assessment and yield estimation using hyperspectral vegetation indices in a potato cropAgron. J., 107 (4): 1295-1309.
DOI: 10.2134/agronj14.0402

Novoa, J.; Chokmani, K.; Nigel, R. & Dufour, P. (2015). Quality assessment from a hydrological perspective of a digital elevation model derived from WorldView-2 remote sensing data / Évaluation dans une perspective hydrologique de la qualité d’un modèle numérique de terrain provenant de données télédétectées par WorldView-2Hydrol. Sci. J., 60 (2): 218-233.
DOI: 10.1080/02626667.2013.875179