# Running CESM2 with synthetic volcanic forcing -- <!-- .slide: data-background="#891919" --> ## Plan - Run CESM2 (community Earth system model) with volcanic forcing <!-- .element: class="fragment" data-fragment-index="1" --> - Volcanoes are the only external forcing <!-- .element: class="fragment" data-fragment-index="2" --> - Obtain estimate of the temperature response <!-- .element: class="fragment" data-fragment-index="3" --> --- # Example -- <!-- .slide: data-background="https://github.com/engeir/presentations-files/raw/9a4f6b9150206f27120130b18d8ac09f68469465/2021/fysikermotet/noresm/noresm_raw_dark.png" --> <!-- .slide: data-background-size="95vw" --> -- <!-- .slide: data-background="https://github.com/engeir/presentations-files/raw/9a4f6b9150206f27120130b18d8ac09f68469465/2021/fysikermotet/noresm/response_func_noresm1_choose_dark.png" --> <!-- .slide: data-background-size="95vw" --> -- <!-- .slide: data-background="https://github.com/engeir/presentations-files/raw/9a4f6b9150206f27120130b18d8ac09f68469465/2021/fysikermotet/noresm/noresm_raw_with_est_dark.png" --> <!-- .slide: data-background-size="95vw" --> -- <!-- .slide: data-background-color="#002f4b" --> <!-- .slide: data-background-video-loop="true" --> <!-- .slide: data-background-video="https://github.com/engeir/presentations-files/raw/9a4f6b9150206f27120130b18d8ac09f68469465/2021/fysikermotet/animation.mp4" --> <!-- .slide: data-background-size="contain" --> --- # Current affairs -- Creating synthetic volcanic forcing data -- <!-- .slide: data-transition="slide-in fade-out" --> <!-- .slide: data-background="https://github.com/engeir/presentations/raw/a97344826c48c9210641d7eeae867d3cab1db520/2022/uit-climate-meeting/assets/synthetic_volcanoes_historic.png" --> <!-- .slide: data-background-size="95vw" --> <!-- .slide: data-background-transition="slide-in fade-out" --> <!-- .slide: data-background-color="#000" --> ### Post industrial volcanoes <!-- .element: style="margin-top: -20vh;" --> -- <!-- .slide: data-transition="fade" --> <!-- .slide: data-background="https://github.com/engeir/presentations/raw/a97344826c48c9210641d7eeae867d3cab1db520/2022/uit-climate-meeting/assets/synthetic_volcanoes_FPP.png" --> <!-- .slide: data-background-size="95vw" --> <!-- .slide: data-background-color="#000" --> ### FPP generated volcanoes <!-- .element: style="margin-top: -20vh;" --> -- <!-- .slide: data-transition="fade-in slide-out" --> <!-- .slide: data-background="https://github.com/engeir/presentations/raw/a97344826c48c9210641d7eeae867d3cab1db520/2022/uit-climate-meeting/assets/synthetic_volcanoes_single.png" --> <!-- .slide: data-background-size="95vw" --> <!-- .slide: data-background-color="#000" --> ### Large single volcano <!-- .element: style="margin-top: -20vh;" --> -- <!-- .slide: data-transition="slide-in fade-out" --> |  |  | | ------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------- | Historical run, unchanged Note: How do I do this? Two images side-by-side should not be hard!? -- <!-- .slide: data-transition="fade" --> |  |  | | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------ | Historical run, eruption in 1850-02-15 -- <!-- .slide: data-transition="fade" --> |  |  | | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------ | Historical run, eruption in 1850-05-15 -- <!-- .slide: data-transition="fade" --> |  |  | | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------ | Historical run, eruption in 1850-08-15 -- <!-- .slide: data-transition="fade" --> |  |  | | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------ | Historical run, eruption in 1850-11-15 -- <!-- .slide: data-transition="fade" --> |  |  | | -----------------------------------------------------------------------------------------------------------------------------------: | :------------------------------------------------------------------------------------------------------------------------------------------------------------------ | Historical run, eruption in 1851-02-15 Note: [Reset](#/2/5) <!-- .element: style="position:relative;font-size:12pt;text-align:left" --> --- # Experiments -- <!-- .slide: data-transition="fade" --> 1. Small ensemble over 5 to 10 years → Look at internal variability 2. Longer run with volcanoes generated from a Poisson process <!-- .element: class="fragment" data-fragment-index="1" --> 3. Volcanoes that cluster together <!-- .element: class="fragment" data-fragment-index="2" --> --- # Questions -- What is an appropriate frequency of volcanoes? -- Is the response the same as that you get from, say CO<sub>2</sub>? What about solar? -- <!-- .slide: data-transition="slide-in fade-out" --> Is the response dependent on altitude? Magnitude/total emitted aerosols? Or maybe what hemisphere the aerosols are mainly in? -- <!-- .slide: data-transition="fade" --> - What is an appropriate frequency of volcanoes? - Is the response the same as that you get from, say CO<sub>2</sub>? What about solar? - Is the response dependent on altitude? Magnitude/total emitted aerosols? Or maybe what hemisphere the aerosols are mainly in?