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HAMMER GIS, home

HG-S04 HAMMER CLIMYX

Plan shade with data

CLIMYX is a product at concept stage: a tool for analysing urban heat islands and outdoor comfort at street level, made for urban planning. It builds on the heat-mapping projects HAMMER already delivers for municipalities, such as the Kiryat Yam pilot, where heat is mapped down to the path, the bus stop and the bench.

Concept stage

Urban heat raster from green to red over buildings, asphalt and vegetation
P-01 Urban heat raster from green to red over buildings, asphalt and vegetation
Plan no.
HG-S04
Scale
1:1,250
Sheet
04/05
Updated
11.2026
Status
Concept stage

The problem

Heat isn't a citywide average

A satellite map shows that the city is hot. It doesn't show which bus stop stands in full sun at noon, which path never gets a moment of shade, or where a single tree or canopy would make the biggest difference. Without those answers, a shade plan stays a wish list and the budget spreads thin instead of going where it is needed.

CLIMYX: heat-coloured 3D city model with controls
P-02 CLIMYX: heat-coloured 3D city model with controls

Working today

Urban heat mapping as a municipal service

Before there is software, there is a method. HAMMER maps urban heat islands as a project service, and that method is the foundation of CLIMYX.

  • Layers from aerial imagery Tree canopies and their heights, shade structures and their heights, vegetation, asphalt, pavements and paths, artificial surfaces, buildings and their heights, and open areas.
  • Shade through the day Shade is computed every half hour across the day, to show where shade falls and when it disappears.
  • An integrated heat model Solar radiation, sun-exposure duration, changing shade and the thermal response of materials such as asphalt, concrete, metal and wood, combined with a 3D surface model (DSM) and remote sensing.
  • No street sensors The mapping is computed from spatial data, with no sensors to deploy and maintain on the street.
  • A shade priority map A map that shows where shading and planting will help most. Deliverables come as GIS layers and DWG.
Wind-flow simulation streamlines around 3D blocks
P-03 Wind-flow simulation streamlines around 3D blocks

The method

From aerial photo to a priority map

  1. ST-01

    Imagery and elevation

    An aerial photo and a 3D surface model.

  2. ST-02

    Layer extraction

    Trees, shade structures, surface materials and buildings, each with its height.

  3. ST-03

    Shade through the day

    Shade computed every half hour.

  4. ST-04

    Heat model

    Radiation, exposure, shade and material thermal response combined.

  5. ST-05

    Priorities

    A map that shows where to start shading and planting.

Where CLIMYX is heading

A direction, not an off-the-shelf product

These are the directions we are exploring. The final scope is still being set, and nothing on this list is available as software today.

  • The city in 3D Buildings and terrain in 3D on a web map. Exploring
  • Radiation and heat islands Solar-radiation and heat-island indicators at street level. Exploring
  • Thermal comfort Indicators such as sky view factor (SVF), mean radiant temperature (MRT) and UTCI. Exploring
  • Scenario comparison Testing design alternatives against each other before money goes into construction. Exploring

Who it's for

For whoever decides where the shade goes

  • Urban planners Spatial evidence of where the street is hot and where an intervention will matter most.
  • Climate and sustainability teams A data foundation for a shade plan and for climate adaptation.
  • Authorities that want to start now The heat-mapping service is available today, no need to wait for the software.

Deliverables

What a heat-mapping project delivers

  • GIS layers Trees, shade structures, surface materials and buildings with heights
  • DWG The same layers for design work
  • Priority map Where to shade and plant first

Status

Concept stage

CLIMYX is not available yet: there is no customer release and no customers for the product. What is available today is HAMMER's urban heat-mapping service. Municipalities that want a say in where CLIMYX goes are welcome to talk to us.

S-09

Want to know where your city runs hottest?

We'll present the heat-mapping method and the Kiryat Yam pilot, and look at what we can map for you right now.