Submitted to review
- Fass E*, Shlomi E, Ziv C, Glikman O, Helman David. Machine learning models based on hyperspectral imaging for pre-harvest tomato fruit quality monitoring. Submitted
- Wang G, Xiao J, Knauer J, Helman David, Tao S, Luo Y, Yinglan A, Wang Y, Jin H, Fang Q, Wang Q, Wang J. No widespread decline in canopy conductance under elevated atmospheric CO2. Submitted
Published (& accepted) articles
2023
- Burstein Omer*, Grodek T, Enzel Y, Helman David. (2023) SatVITS-Flood: Satellite Vegetation Index Time Series Flood detection model for hyperarid regions. Water Resources Research, 59, e2023WR035164.
- Yungstein Yehuda* and Helman David. (2023) Cooling, CO2 reduction, and energy-saving benefits of a green-living wall in an actual workplace. Building and Environment, 236, 110220.
- Mulero Gabriel*, Jiang Duo*, Bonfil J. David, Helman David. (2023) Use of thermal imaging and the Photochemical Reflectance Index (PRI) to detect wheat response to elevated CO2 and drought. Plant, Cell & Environment, 46 (1), 76-92.
- Azar Matan, Mulero Gabriel*, Oppenheimer-Shaanan Yaara, Helman David, Klein Tamir. (2023) Aboveground responses to belowground root-system mechanical damage detected by non-destructive sensing metrics in three Mediterranean tree species. Forestry: An International Journal of Forest Research.
- Hipsch M, Michael Y**, Lampl N, Sapir O, Cohen Y, Helman David, and Rosenwasser S. (2023) Early detection of late blight in potato by whole-plant redox imaging. The Plant Journal., 113 (4), 649-664.
- Ott Richard, Gallen Sean, Helman David. (2023) Denudation partitioning in carbonate regions reveal climatic and tectonic drivers of carbonate landscape evolution. Earth Surface Dynamics., 11 (2), 247–257.
- Xie X., Hao M., Ding F., Ide T., Helman David, Scheffran J., Wang Q., Qian Y., Chen S., Wu J., Ma T., Ge Q., Jiang D. (2023) Exploring the worldwide impact of COVID-19 on conflict risk under climate change. Heliyon.
- Jiang D, Wu J, Ding F, Ide T, Scheffran J, Helman David, Zhang S, Qian Y, Fu J, Chen S, Xie X, Ma T, Hao M, Ge Q. (2023). An integrated deep-learning and multi-level framework for understanding the behavior of terrorist groups. Heliyon.
2022
- Jiang Duo*, Mulero Gabriel*, Bonfil J. David, Helman David. (2022) Early or late? The role of genotype phenology in determining wheat response to drought under future high atmospheric CO2 levels. Plant, Cell & Environment, 45 (12), 3445–3461.
- Helman David and Bonfil David J. (2022) Six decades of warming and drought in the world’s top wheat-producing countries offset the benefits of rising CO2 to yield. Scientific Reports (Nature Group), 12 (1), 1-10.
- Helman David, Yehuda Yungstein*, Gabriel Mulero*, Yaron Michael** (2022) High-Throughput Remote Sensing of Vertical Green-Living Walls (VGW) in Workplaces. Remote Sensing, 14(14), 3485; https://doi.org/10.3390/rs14143485.
- Xie X, Hao M, Ding F, Helman David, Scheffranf J, Jiang D. (2022) Exploring the direct and indirect impacts of climate variability on armed conflict in South Asia. iScience, 25(11), 105258.
- Grünzweig J., De Boeck H., Rey A., Santos M., Adam O., Bahn M., Belnap J., Deckmyn G., Dekker S., Flores O., Gliksman D., Helman David, Hultine K., Liu L., Meron E., Michael Y., Sheffer E., Throop H., Tzuk O., Yakir D (2022). Dryland mechanisms could widely control ecosystem functioning in a drier and warmer world. Nature Ecology & Evolution, 6, 1064-1076.
- Ge Q., Hao M., Ding F., Jiang D., Scheffran J., Helman David, Ide T. (2022). Modelling armed conflict risk under climate change with machine learning and high-frequency time-series data. Nature Communications, 13, 2839.
- Xue B., Xiao J., Wang G., Helman David, Sun G., Tao S., Liu T., Yan D., Zhao T., Zhang H., Chen L., Sun W., Yinglan A. (2022) Divergent hydrological responses to forest expansion in dry and wet basins of China: Implications for future afforestation planning. Water Resources Research, 58, e2021WR031856.
- Augustinus Benno, Blum Moshe, Citterio Sandra, Gentili Rodolfo, Helman David, Nestel David, Schaffner Urs, Müller-Schärer Heinz, Lensky Itamar M (2022). Ground-truthing predictions of a demographic model driven by land surface temperatures with a weed biocontrol cage experiment. Ecological modeling. 466, 109897.
- Wang Qian, Hao Mengmeng, Helman David, Ding Fangyu, Jiang Dong, Xie Xiaolan, Chen Shuai, Ma Tian (2022). Quantifying the influence of climate change on armed conflict in Africa, 2000-2015. Environment, Development and Sustainability.
2021
- Xue Baolin, Helman David, Wang Guoqiang, Xu Chong-Yu, Xiao Jingfeng, Wang Lei, Li Xiuping, Liu Tingxi, Duan Limin (2021). The low hydrologic resilience of Asian Water Tower basins to adverse climatic changes. Advances in Water Resources, 155, 103996.
- Michael Yaron**, Helman David, Glickman Oren , Gabay David , Brenner Steve, Lensky Itamar M (2021). Forecasting fire risk with machine learning and dynamic information derived from satellite vegetation index time-series. Science of the Total Environment.
- Shiff Shilo, Helman David, Lensky Itamar (2021). Worldwide continuous gap-filled MODIS land surface temperature dataset. Scientific Data (Nature Group), 8, 74.
2020
- Helman David, Mussery Amir (2020). Using Landsat satellites to assess the impact of check dams built across erosive gullies on vegetation rehabilitation. Science of the Total Environment, 730, 138873.
- Helman David, Benjamin F. Zaitchik, and Chris Funk (2020). Climate has contrasting direct and indirect effects on armed conflicts. Environmental Research Letters, 15, 104017.
- Helman David, Benjamin F. Zaitchik (2020). Temperature anomalies affect violent conflicts in African and Middle Eastern warm regions. Global Environmental Change, 63, 102118.
- Xue Baolin, Wang Guoqiang, Xiao Jingfeng, Helman David, Sun Wenchao, Wang Jianhua, Liu Tingxi (2020). Global convergence but regional disparity in the hydrological resilience of ecosystems and watersheds to drought. Journal of Hydrology.
- Mussery Amir**, Helman David, Agmon Yael, Ben-Shabat Itzik, El-Fregat Salem, Goldman-Golan Deborah (2020). The indigenous Bedouin farmers as land rehabilitators - setup of an action research programme in the Negev. Land Degradation and Development.
- Grodek Tamir, Morin Efrat, Helman David, Lensky Itamar, Dahan Ofer, Seely Mary, Benito Gerardo, Enzel Yehouda (2020). Eco-hydrology and geomorphology of the largest floods along the hyperarid Kuiseb River, Namibia. Journal of Hydrology, 582.
2019
- Ott Richard F, Gallen Sean F, Caves Rugenstein Jeremy K, Ivy-Ochs Susan, Helman David, Fassoulas Charalampos, Vockenhuber Christoph, Christl Marcus, Willett Sean D. (2019). Chemical versus mechanical denudation in meta-clastic and carbonate bedrock on Crete, and mechanisms for steep and high carbonate topography. Journal of Geophysical Research: Earth Surface, 124, 2943–2961.
- Helman David, Lensky Itamar M and Bonfil David J. (2019). Early prediction of wheat grain yield production from root-zone water content at heading using Crop RS-Met. Field Crops Research. 232, 11–23.
- Helman David, Bonfil David J and Lensky Itamar M. (2019). Crop RS-Met: A biophysical evapotranspiration and root-zone soil water content model for crops based on proximal sensing and meteorological data. Agricultural Water Management, 211, 210–219.
- Miller Ofir, Helman David, Svoray Tal, Morin Efrat and Bonfil David J.* (2019). Explicit wheat production model adjusted for semi-arid environments. Field Crops Research, 231, 93–104.
2018
- Helman David (2018). Land surface phenology: What do we really ‘see’ from space? Science of the Total Environment, 618, 665–673. https://doi.org/10.1016/j.scitotenv.2017.07.237.
- Helman David, Bahat Idan, Netzer Yishai, Ben-Gal Alon, Alchanatis Victor, Peeters Aviva and Cohen Yafit (2018). Using Time Series of High-Resolution Planet Satellites Images to Monitor Grapevine Stem Water Potential in Commercial Vineyards. Remote Sensing, 10(10), 1615, doi: https://doi.org/10.3390/rs10101615.
- Lensky Itamar M, Dayan Uri and Helman David (2018). Synoptic Circulation Impact on the Near Surface Temperature Difference Outweighs That of the Seasonal Signal in the Eastern Mediterranean. Journal of Geophysical Research: Atmospheres. 123 (20), 11,333-11,347. doi:https://doi.org/10.1029/2017JD027973.
- Michael Yaron, Lensky Itamar M, Brenner Steve, Tchetchik Anat, Tessler Naama, Helman David (2018). Economic Assessment of Fire Damage to Urban Forest in the Wildland-Urban Interface Using Planet Satellites Constellation Images. Remote Sensing, 10(9), 1479.
- Blum Moshe, Nestel David, Cohen Yafit, Goldshtein Eitan, Helman David and Lensky Itamar (2018). Predicting Heliothis (Helicoverpa armigera) pest population dynamics with an age-structured insect population model driven by satellite data. Ecological Modelling, 369, 1–12. doi.org/10.1016/j.ecolmodel.2017.12.019.
- Manfreda Salvatore, McCabe M, Miller P, Lucas R, Pajuelo Madrigal V, Mallinis G, Ben-Dor E, Helman David, Estes L, Ciraolo G, Müllerová J, Tauro F, De Lima M I, De Lima J L, Frances F, Caylor K, Kohv M, Maltese A, Perks M, Ruiz-Pérez G, Su Z, Vico G, Toth B. (2018). On the use of Unmanned Aerial Systems for environmental monitoring. Remote Sensing, 10(4), 641, 1–28. doi: 10.3390/rs10040641.
2017
- Helman David, Lensky Itamar M, Yakir Dan, and Osem Yagil (2017). Forests growing under dry conditions have higher hydrological resilience to drought than do more humid forests. Global Change Biology, 23, 2801 - 2817. doi:10.1111/gcb.13551.
- Helman David, Osem Yagil, Yakir Dan, and Lensky Itamar M. (2017). Relationships between climate, topography, water use and productivity in two key Mediterranean forest types with different water-use strategies. Agricultural and Forest Meteorology, 232, 319 - 330.
- Helman David, Lensky Itamar M, Osem Yagil, Rohatyn Shani, Rotenberg Eyal, and Yakir Dan (2017). A biophysical approach using water deficit factor for daily estimations of evapotranspiration and CO2 uptake in Mediterranean environments. Biogeosciences, 14, 3909-3926. doi.org/10.5194/bg-14-3909-2017.
- Helman David, Leu Stefan and Mussery Amir (2017). Contrasting effects of two Acacia species on understorey growth in a drylands environment: Interplay of canopy shading and litter interference. Journal of Vegetation Science, 28, 1140–1150. doi:10.1111/jvs.12576.
2016
- Mussery Amir, Helman David, Leu Stefan, and Budovsky Arie (2016). Modeling herbaceous productivity considering tree-grass interactions in drylands savannah: The case study of Yatir farm in the Negev drylands. Journal of Arid Environment, 124, 160-164.
2015
- Helman David, Givati Amir, and Lensky Itamar M. (2015). Annual evapotranspiration retrieved from satellite vegetation indices for the Eastern Mediterranean at 250 m spatial resolution. Atmos. Chem. Phys., 15, 12567-12579, doi:10.5194/acp-15-12567-2015.
- Helman David, Lensky Itamar M, Tessler Naama, and Osem Yagil (2015). A phenology -based method for monitoring woody and herbaceous vegetation in Mediterranean forests from NDVI time series. Remote Sensing, 7, 12314-12335.
- Rotem-Mindali Orit, Michael Yaron, Helman David, and Lensky Itamar M. (2015). The role of local land-use on the urban heat island effect of Tel Aviv as assessed from satellite remote sensing. Applied Geography, 56, 145 - 153.
2014
- Helman David, Lensky Itamar M, Mussery Amir, and Leu Stefan (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.
- Helman David, Mussery Amir, Lensky Itamar M, and Leu Stefan (2014). Detecting changes in biomass productivity in different land management regimes in drylands using satellite-derived vegetation index. Soil Use and Management, 30(1), 32 - 39.
* Lab's student ** Lab's manager or assistant