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    New Layers: Wet-Bulb Temperature, Solar Power and UV Index

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    • Korina
      Korina Administrator last edited by David Polášek

      With the latest update, three new temperature layers arrive on Windy.com - Wet-bulb temperature, UV Index, and Solar Power.

      Let's look at each layer and how you can utilize it!

      Wet-bulb temperature

      This year's heat has been record-breaking across many places on the planet, such as repeated heatwaves in India this Spring or more than 40C in the UK in July. So having accurate temperature data in such moments is extremely crucial.

      But the temperature figures alone don't give a complete picture of the impact of heat on humans. So what is missing? It is the humidity that plays a significant role in how we actually experience high temperatures and how dangerous they are.

      This is where the Wet-bulb temperature comes in, as it combines dry air temperature with humidity. It is a value indicating the lowest level of temperature that can be obtained through evaporative cooling of a water-wetted, ventilated surface. The wet-bulb temperature varies with the humidity levels; the more saturated the air is, the less evaporation will occur.

      In essence, the WBT value means how well humans can cool themselves by sweating.

      The WBT critical threshold is considered 35C, where we can no longer cool down our bodies by sweating. At this temperature, human bodies switch from shedding heat to the environment, to gaining heat from it.

      The wet-bulb temperature is especially important for indoor environments, where deaths often occur during heatwaves, and no other factor like solar power or wind comes into effect.

      _center

      Solar power

      Solar Power is the amount of solar radiation (also known as shortwave radiation) that reaches a horizontal plane at the surface of the Earth. It can be characterized as solar irradiance (power per area at a given moment).

      Solar radiation is a form of electromagnetic radiation emitted by the sun, measured in watts per square metre (W/m2). On a clear day, the maximum surface value is approximately 1000 W/m2 at solar noon.

      It is an essential renewable energy source, as it can be captured and turned into various forms of energy, including electricity using solar panels (PV).

      With that said, the Solar power layer can be used to indicate how much energy can be produced during one day with a certain amount of resources, in this case, PV panels.

      This parameter comprises both direct and diffuse solar radiation. To a reasonably good approximation, this parameter is the model equivalent of what would be measured by a pyranometer (an instrument used for measuring solar radiation) at the surface.

      _center

      UV Index

      UV Index is a measure of the level of UV radiation at a particular place and time. The UVI indicates the level of radiation and the danger of short-term and long-term exposure to the sun.

      Most of us choose what to wear or where we will go based on a weather forecast. We can do the same with the UV Index forecast. The UVI provides valuable information about whether we should adopt protective measures when going outside to avoid health risks and injuries.

      The values of UV radiation change throughout the day. The daily maximum UV levels occur during the four-hour period around solar noon (when the Sun passes a location's meridian).

      UV index values meaning:

      0 to 2 means low danger from the Sun's UV rays for the average person.
      3 to 5 means moderate risk of harm from unprotected sun exposure.
      6 to 7 means high risk of harm from unprotected sun exposure.
      8 to 10 means very high risk of harm from unprotected sun exposure.
      11 or more means extreme risk of harm from unprotected sun exposure.

      _center

      How to access the new layers

      The new layers are located under the Temperature category on both the desktop and the app. And are also available on the 3D Globe for Premium users (desktop only).

      If you do not see them right away, open the "More layers.." option and select them from the layer list.

      _center

      https://www.windy.com/-Wet-bulb-temp--wetbulbtemp?wetbulbtemp,38.461,-29.403,3,internal

      Korina

      A mark.ingalls 2 Replies Last reply Reply Quote 425
      • Pinned by  Korina Korina 
      • A
        amjadlodhi @Korina last edited by

        @Korina good information

        weatherfan 1 Reply Last reply Reply Quote 1
        • mark.ingalls
          mark.ingalls @Korina | Premium last edited by mark.ingalls

          @Korina The solar radiation value is an especially helpful resource for me. Me and some of the meteorologists I work with have already started using it to forecast solar energy at our assets. Thanks!

          Korina 1 Reply Last reply Reply Quote 3
          • Korina
            Korina Administrator @mark.ingalls last edited by

            @mark-ingalls Perfect!

            Korina

            1 Reply Last reply Reply Quote 1
            • S
              srynd | Premium last edited by

              Fantastic enhancements! Thank you!

              1 Reply Last reply Reply Quote 1
              • BrankoMicev 0
                BrankoMicev 0 last edited by

                Perfect. Good job. Thank you very much. This is very useful.
                I would like to see Forecast WindPower as the next layer. :-)

                Branko Micev

                1 Reply Last reply Reply Quote 1
                • WG01
                  WG01 | Premium last edited by

                  fantastic! Great! Are there any possibilities to get the SOLAR Power value for a defined geo position? I want the value for control my devices based on the photovoltaic system.
                  Many thanks,
                  Wolfgang

                  idefix37 1 Reply Last reply Reply Quote 1
                  • idefix37
                    idefix37 Sailor Moderator @WG01 last edited by idefix37

                    @WG01
                    Select the Solar power layer and then place the picker over your location, you get the power value as forecasted at this hour.

                    1 Reply Last reply Reply Quote 1
                    • Chong-Wei Huang
                      Chong-Wei Huang last edited by

                      traditional chinese translate
                      Wet-Bulb Temperature=濕球溫度
                      Solar Power=太陽能
                      UV Index=紫外線指數

                      Korina 1 Reply Last reply Reply Quote 0
                      • Korina
                        Korina Administrator @Chong-Wei Huang last edited by

                        @Chong-Wei-Huang Hello, these translations are already available on Windy if you select Chinese traditional.

                        Korina

                        1 Reply Last reply Reply Quote 0
                        • weatherfan
                          weatherfan @amjadlodhi last edited by

                          @amjadlodhi Yes, very useful information, especially solar power. Good for summer outdoor activities, like golf, swimming, and hiking.

                          1 Reply Last reply Reply Quote 0
                          • idefix37
                            idefix37 Sailor Moderator last edited by idefix37

                            @weatherfan
                            Please stop repeating to same post ! This can lead you to be banned from this forum
                            https://community.windy.com/topic/20586/windy-community-rules

                            1 Reply Last reply Reply Quote 0
                            • A
                              amagro | Premium last edited by amagro

                              I'm getting Solar Power higher than zero during the night.
                              How that is possible?

                              Tks

                              Edit: I refresh the page and now I'm getting the corret value - 0W/m2

                              1 Reply Last reply Reply Quote 0
                              • Hoggy H
                                Hoggy H last edited by

                                Is it possible to get the Solar layer via embed? Doesn't seem to be a selectable option?

                                Ondřej Šutera 1 Reply Last reply Reply Quote 0
                                • Ondřej Šutera
                                  Ondřej Šutera Administrator @Hoggy H last edited by

                                  @Hoggy-H Unfortunately, this layer is not available in embed at this moment.

                                  Hoggy H 1 Reply Last reply Reply Quote 0
                                  • Hoggy H
                                    Hoggy H @Ondřej Šutera last edited by

                                    @Ondřej-Šutera That is a shame. Is it something in the pipeline or am I out of luck? (Sadly as you'll know I can't just iframe https://www.windy.com/-Solar-power-solarpower?solarpower,53.083,-0.429,5 due to cross linking disabled)

                                    Ondřej Šutera 1 Reply Last reply Reply Quote 0
                                    • Ondřej Šutera
                                      Ondřej Šutera Administrator @Hoggy H last edited by

                                      @Hoggy-H I am afraid that there are no plans for implementation of this for now.

                                      1 Reply Last reply Reply Quote 0
                                      • M
                                        Madeline Rich last edited by

                                        This post is deleted!
                                        1 Reply Last reply Reply Quote 0
                                        • Chris Graham 3
                                          Chris Graham 3 last edited by

                                          One feature that would be awesome is a sea surface temperature SST layer, definately worth paying premium for!

                                          Korina 1 Reply Last reply Reply Quote 1
                                          • Korina
                                            Korina Administrator @Chris Graham 3 last edited by

                                            @Chris-Graham-3 Hi, we already have this layer Sea Temperature.

                                            Korina

                                            1 Reply Last reply Reply Quote 1
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                                            • Referenced by  idefix37 idefix37 
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