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Latest Weather News
Week Ahead: Another heatwave on the way and no rain for most either
Another heatwave on the way in the week ahead for England & Wales. Although the heat not as extreme as back in July, the heatwave could last up to 7 days in the south, with little or no rain too. View the full blog here
Heat back on the agenda next week with high pressure taking hold
High pressure is moving in across the British Isles, bringing warm, dry and sunny weather with it. Through next week, heat will also begin to build with temperatures heading up into the thirties. Read the full update here
Staying mostly dry away from the far northwest, heatwave for the south next week
It will be dry with plenty of sunshine in the south today, more of the UK this weekend and next week, as high pressure builds in, far northwest seeing rain at times. Heatwave conditions building next week across the south. Read the full update here
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Earthshine
Hi all,
I'm sorry for the very specific question, I've been researching how actually generate a linear tangent model from a ray-tracing algorithm. The papers I've read so far haven't been particularly clear how this is done. The formulation of using a tangent model and gradient descent methods is described here: https://www.ecmwf.int/sites/default/files/elibrary/2018/18542-tangent-linear-and-adjoint-models-data-assimilation.pdf
If anyone is in the field of GNSS radio-occultation or other propagation-based methods I'd greatly appreciate any guidance!
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