Category Archives: Numerical modelling

How to improve a climate model: a 24-year journey from observing melt ponds to their inclusion in climate simulations

Posted on 30 May, 2023 by danaallen

By: David Schroeder Melt ponds are puddles of water that form on top of sea ice when the snow and ice melts (see Figure). Not all the water drains immediately into the ocean, but it can stay and accumulate on … Continue reading →

Posted in Arctic, Climate modelling, Cryosphere, IPCC, Numerical modelling, Polar | Leave a comment

The Devil Is In The Details, Even Below Zero

Posted on 7 November, 2022 by danaallen

By: Ivo Pasmans  An anniversary is coming up in the family and I had decided to create a digital photo collage. In the process I was scanning a youth photo and noticed that the scan looked a lot less refined … Continue reading →

Posted in Arctic, Cryosphere, Numerical modelling | Tagged | Leave a comment

Modelling Convection In The Maritime Continent

Posted on 25 July, 2022 by danaallen

By: Steve Woolnough The Maritime Continent, the archipelago, including Malaysia, Indonesia, the Philippines and Papua New Guinea is made up of hundreds of islands of varying shapes and sizes. It lies in some of the warmest waters on Earth and … Continue reading →

Posted in Maritime Continent, Numerical modelling, Tropical convection | Leave a comment

Where Do All My Balloons Go?

Posted on 21 February, 2022 by danaallen

By: Andrew K. Mirza Turbulence! If you have ever travelled by aeroplane, then you may have experienced atmospheric turbulence during the flight: It is when the captain switches on the seat-belt sign; requests all passengers return to their seats and … Continue reading →

Posted in Atmospheric dispersion, Boundary layer, Greenhouse gases, Numerical modelling, Turbulence, Wind | Leave a comment

Why should we care about sea ice floes?

Posted on 14 February, 2022 by danaallen

By: Adam Bateson One of the most frequently used visual devices to illustrate climate change is that of a polar bear on sea ice surrounded by open ocean (Fig. 1). Polar bears are today identified as a vulnerable species, with sea ice decline the … Continue reading →

Posted in Arctic, Climate, Climate modelling, Cryosphere, Numerical modelling, Polar | Leave a comment

Advance Of The Indian Monsoon Onset

Posted on 8 November, 2021 by danaallen

By: Arathy Menon The Indian monsoon provides water for agriculture, industry and the basic water needs of more than a billion people. The monsoon onset usually takes place in south India during the beginning of June and the monsoon rains then … Continue reading →

Posted in Climate, Monsoons, Numerical modelling, Tropical convection | Tagged | Leave a comment

The Core-cloak Convection Model

Posted on 26 October, 2020 by danaallen

By: Jian-Feng Gu Moist convection plays a fundamental role in large-scale circulations and climate, ranging from cumulus clouds smaller than 100m to organized weather systems of several thousands of kilometers. Limited by their grid spacing, numerical models are not able … Continue reading →

Posted in Climate, Clouds, Convection, Numerical modelling | Leave a comment

Practical Problems when Simulating the Earth

Posted on 27 July, 2020 by danaallen

By: David Case In principle, to simulate the earth should be a doddle. We know that it’s made of such things as molecules, crystals and atoms, and the forces between these derive from charged particles, and these do little more … Continue reading →

Posted in Climate, Numerical modelling | Leave a comment

Covid-19: Using tools from geophysics to assess, monitor and predict a pandemic

Posted on 22 June, 2020 by danaallen

By: Alison Fowler, Alberto Carrassi, Javier Amezcua The emergence of a new coronavirus disease, known as Covid-19, that could be transmitted between people was identified in China in December 2019. By 3rd March 2020 it had spread to every continent … Continue reading →

Posted in Climate, Numerical modelling | Tagged | Leave a comment

Finding the skill of forecasts of extreme precipitation in Southeast Asia

Posted on 15 June, 2020 by danaallen

By: Samantha Ferrett Forecasting weather in Southeast Asia Southeast (SE) Asia is prone to high‐impact weather and is often subject to flooding and landslides as a result of heavy rainfall. Just last month Indonesia was hit by heavy rainfall that … Continue reading →

Posted in Numerical modelling, Weather forecasting | Tagged | Leave a comment