David Helman
Department of Geography and Environment, The Faculty of Social Sciences – Bar Ilan University,
Ramat Gan 5290002, Israel
Phone: 00-972-25606570
Fax: 00-972-37384033
E-mail: [email protected]
Personal web: http://a1a.co.il/davidhelman
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Education
2012 –
PhD., Department of Geography and Environment - Bar Ilan University, Israel.
Advisors: Dr. Itamar Lensky (Bar-Ilan University), Prof. Dan Yakir (Weizmann
Institute of Science) and Dr. Yagil Osem (Agricultural Research Organization –
ARO). Dissertation: The water use and water use efficiency of Mediterranean
forests assessed by satellite remote sensing.
2002 – 2004
M.Sc., Environmental and Earth Sciences – The Hebrew University of
Jerusalem, Israel, supervised by Prof. Yigal Erel. Topic: The effect of climatic
parameters on the release of Pb and Sr isotopes during the dissolution of
Granites (Geochemistry).
1998 – 2002
B.Sc., Geology. Institute of Earth Sciences - The Hebrew University of
Jerusalem, Israel.
Professional experience
2014 –
Courses teaching: Computer skills, Department of Geography and Environment
- Bar Ilan University.
2011 –
Computer programming and research assistant in the Remote sensing lab.
Department of Geography and Environment - Bar Ilan University.
2002 – 2004
Clean laboratory for trace metals and isotopic composition analyses – Institute
of Earth Sciences, The Hebrew University of Jerusalem, Israel.
Awards and Scholarships
2013 – 2014
The Ministry of Agriculture and Rural Development scholarship for excellent
PhD candidates (1 year)
2012 – 2016
Bar Ilan Presidential scholarship for excellent Ph.D. candidates
2002 – 2004
Environmental and Earth Sciences scholarship for excellent M.Sc. students,
The Hebrew University of Jerusalem.
David Helman
Department of Geography and Environment, The Faculty of Social Sciences – Bar Ilan University,
Ramat Gan 5290002, Israel
Phone: 00-972-25606570
Fax: 00-972-37384033
E-mail: [email protected]
Personal web: http://a1a.co.il/davidhelman
_____________________________________________________________________________
Professional skills
IDL (Interactive Data Language), R, ArcGIS, ENVI, SPSS, AMOS (Structural Equation Modeling).
Publications
2014
3. Amir Mussery, David Helman, Stefan Leu and Arie Budovsky., 2014. Estimating herbaceous
productivity in savannas considering the subcanopy zone effect: The case study of Yatir farm in
the Negev drylands. Plant Ecology (under review).
2. David Helman, Itamar M. Lensky, Amir Mussery and Stefan Leu., 2014. Rehabilitating
degraded drylands by creating woodland islets: Assessing long-term effects on aboveground
productivity and soil fertility. Agricultural and Forest Meteorology, 195-196, 52 – 60.
1. David Helman, Amir Mussery, Itamar M. Lensky and Stefan Leu., 2014. Detecting changes in
biomass productivity in a different land management regimes in drylands using satellite-derived
vegetation index. Soil Use and Management, 30(1), 32 – 39.
David Helman
Department of Geography and Environment, The Faculty of Social Sciences – Bar Ilan University,
Ramat Gan 5290002, Israel
Phone: 00-972-25606570
Fax: 00-972-37384033
E-mail: [email protected]
Personal web: http://a1a.co.il/davidhelman
_____________________________________________________________________________
Conferences and presentations
David Helman, Itamar Lensky, Ron Drori and David Evalgon. Monitoring the dynamics of
vegetation components in Mediterranean forests: Time-series analysis of satellite-derived
NDVI. The 40th annual conference of The Israel Society of Ecology and Environmental Science
(ISEES 2012), Tel Aviv University, Israel, October 2012.
David Helman, Itamar Lensky, Yagil Osem, Dan Yakir and Eyal Rotenberg. Evapotranspiration
and vegetation index relationship in vegetation systems: the feasibility of using satellitederived VI to estimate ET. The 54th Annual Conference of The Israeli Geographical Association
(ACIGA 2013), Bar Ilan University, Israel, December 2013.
David Helman, Amir Mussery, Itamar Lensky, and Stefan Leu. Detecting changes in biomass
productivity in different land management regimes in drylands using satellite-derived
vegetation index. Remote sensing internal seminar, Bar Ilan University, Israel, January 2014.
David Helman, Itamar Lensky, Yagil Osem and Dan Yakir. Can evapotranspiration be
estimated from satellite-derived vegetation indices? – Investigation in simple and complex
vegetation systems. Global Vegetation Monitoring and Modeling International Conference
(GV2M 2014), Avignon, France, February 2014.
David Helman, Itamar Lensky, Eyal Rotenberg, Yagil Osem and Dan Yakir. Investigation of the
relationship between MODIS-derived Vegetation Indices (VI) and evapotranspiration (ET) in
annual vegetation systems and evergreen forests. 2014 ForestSAT International Conference,
Riva del Garda (TN), Italy, November 2014 (accepted).
David Helman, Itamar Lensky, Yagil Osem and Naama Tesler. Decomposing MODIS NDVI time
series to monitor changes in annual and evergreen vegetation in Mediterranean forests –
implications for management and fire risk assessment. 2014 ForestSAT International
Conference, Riva del Garda (TN), Italy, November 2014 (accepted).

here - Dustin Pearlman