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    Accessibility statement

    Accessibility arrangements at Ramat Hanadiv

    Ramat Hanadiv works hard to make its services accessible to people with disabilities in order to afford them a visiting experience that meets their unique requirements.

    In accordance with the law, our accessibility manager, Racheli Schwartz-Tzachor (Ph.D.), is available. If you encounter unique accessibility requests you’re welcome to contact us in one of the following ways:

    Telephone: 04-6298127 Fax: 04-6399117

    or Email: To Racheli

    The Memorial Gardens and Visitor Center are accessible except for the mausoleum.

    Disabled parking:

    Designated disabled parking bays may be found in the main and secondary parking lots.

    Disabled restrooms:

    Every facility that offers restrooms also offers designated disabled restrooms.

    Disabled Aids:

    • Devices for the hearing impaired are available in the InfoShop, classrooms, movie theater and auditorium and on training tours. For your convenience, contact us and let us know in advance about your visit in order to receive fast, easy service.
      Telephone: 04-6298111 ext. 4.
    • Wheelchairs may be hired from the InfoShop - for on-site visits.

    Website accessibility:

    Ramat Hanadiv invests effort and resources to make the organization’s website accessible so that disabled people will also be able to enjoy it.

    Restrictions to accessibility:

    As a general rule, all of the website’s pages were built to meet level AA conformance to web content accessibility. Nevertheless, despite our efforts to make all of the website’s pages accessible, it is possible that some parts of the site are still inaccessible. We note that a number of pages contain external components that are beyond our control and inaccessible. Therefore, the following pages do not meet the accessibility standard:



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Monitoring climate change Impact on the life cycle of plants, using remote sensing

Monitoring climate change Impact on the life cycle of plants, using remote sensing
Alex Shtein
Germination, growth, blooming, and leaf drop – these and other cyclical phenomena in the life cycle of plants are the subject of the scientific term known as phenology. Such recurring events are determined by plants' genes, and they are correlated to specific seasons through environmental conditions such as temperature, precipitation, and light. Global climate changes have a significant impact on the phenology of many plants, and consequently on their composition and functioning, as well as on the ecosystem services they provide to humankind.
In recent decades, climate change has been occurring relatively faster on our planet than was typical in the past.
Just since the start of the millennium, we in Israel have observed the desiccation and death of oak trees, of natural and planted pines, and of other species, all of which may be attributed to climate change. Phenological changes in plants are rapid, apparently their first response to climatic changes. Stress in trees, for instance, can be seen as a result of prolonged periods of drought. Hence the importance of continuous and consistent phenological monitoring, which is considered the primary means to reveal such early warning signs. 
two Palestine oak trees
two Palestine oak trees

To carry out this kind of tracking and analysis of the impact of climate change on the life cycle of trees, a new scientific project has been launched at Ramat Hanadiv using a multi-spectral digital camera installed at the top of the research tower. The camera photographs the vegetation daily at frequencies across the electromagnetic spectrum, capturing information from a range of wave lengths invisible to the human eye. It is focused on common oaks, phillyrea, Aleppo pines, spiny broom, and prickly burnet, growing together densely at the north-facing slope of Hanadiv wadi. 
In order to explore the performance of a multispectral camera and assess a year-around phenological cycle, continuous daily data from both multispectral camera and conventional RGB camera will be gathered in the Ramat Hanadiv site. Multispectral images will be geometrically corrected and two indices will be calculated (NDVI and Red Edge). From daily RGB images two simple indices will be calculated; normalized “brightness” and ‘‘greenness’’ index (Richardson et al., 2007, 2009). Physiological measurements will be carried out every two month on 24 selected trees (six individuals of each of the four dominant species). In this framework water potential (Ψl) at predawn and midday, stomatal conductance (gs) and chlorophyll content measurements will be performed in order to correlate the spectral indices and these biophysical measurements. In addition, several phenological observations, such as leaves senescence, fruit and young leaves emergence, bud burst, and flowering will be performed. 
The camera takes three images per day: at 11:00, 12:00 and 13:00 in five different spectral bands: green (550 nm), red (670 nm), two red edge bands (740 & 780 nm) and NIR (860 nm). Spatial resolution varies with the distance from the camera (5 cm-15 cm per pixel). The data is transformed to our lab in the same day.
The research is a joint venture between Ramat Hanadiv, Prof. Arnon Karnieli and the Remote Sensing Laboratory team of Ben Gurion University's Institutes for Desert Research.
Here is a unique web interface that displays in detail the story of the oaks at Ramat Hanadiv, in plain language accompanied by photographs from the field. The interface provides a unique opportunity to make close acquaintance with the stages of the research process.

You are welcome to enter the link and follow this fascinating process.Activate the speakers.


oaks story map



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Ramat Hanadiv
P.O.B 325
Zichron Ya'akov
Phone: 04-6298111


The entrance to Ramat Hanadiv..

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