God willing, I'm an architect interested in climate change, urban built form and software architecture. In one of my works, considered the relationship between altitude and regional climate which in Kenya can be summaries as follows: (1) Warm-humid; (2) Hot-dry; (3) Savannah; (4) Lake district; (5) Uplands; and (6) Upper highlands climate; which by implication means, the higher you rise, the cooler it becomes. Unfortunately, over the last year or two and going forward, for the foreseeable future, been working on: (1) Regional bioclimatic architecture; and (2) Experiences, reference and meanings of sorts, and have had no human-energy to take-on anything else. Anyone interested could consider my hypothesis and run-with-it: Altitude is measured as the height above sea level. The sea-level is rising, so the altitudes are being reduced, and thus rising temperatures. Is this hypothesis, fallacious? Ebrahim
Reducing altitude does not arise, because, the rise in sea-level expected is max. 4.3 feet as per NCA, USA. It may not crate that much change in pressure. When you look at altitude two things need consider from the weather front 1. Fall in Temperature and fall in pressure.
Altitude is measured with respect to the averaged sea level that is determined by geoid. The changes of geoid shape in the foreseeable future are not going to be sufficiently significant to justify the concern expressed in your question. I have attached a sample drawing indicating the relations between the sea level, geoid and land elevations.
The geoid maps are obtained from:
https://www.icsm.gov.au/education
You can visit also:
https://www.esri.com/news/arcuser/0703/geoid1of3.html
https://oceanservice.noaa.gov/facts/geoid.html
https://www.ngs.noaa.gov/GEOID/PRESENTATIONS/2007_02_24_CCPS/Roman_A_PLSC2007notes.pdf
Abburi and Janusz, sallaams (greetings) from Kenya. Thank you for your responses and have taken note with appreciation. As already on other subjects, you may continue with these discussions, and available if you require any further information on my part. You may wish to visit my profile to see my ongoing work. Ebrahim