6

As with so many concepts in geography, I don't think there is a definitive answer -- it would very likely vary from city to city and from year to year. Urban heat island (UHI) effect is affected by so many different variables, such as albedo (reflectivity of surfaces), specific heat of the materials receiving and releasing radiation from the sun, thermal ...


5

Are there papers or datasets of average CO2 concentrations down at ground level (say 0-20 metres upwards from the ground), in the spaces between buildings - streets, parks and so on? Yes, THE URBAN CO2 DOME OF PHOENIX, ARIZONA has measurements at a height of 2 meters above ground level, 1.6 km horizontal resolution. CO2 concentrations are 555 ppm near ...


4

I did my undergraduate capstone on observational moisture changes around cities. It's an interesting field, though it certainly seems fairly challenging to draw out and explain changes given the incredible spatial and temporal variability. So that's definitely one of the challenges to it. Another is the current observational density, as there are very few ...


3

The urban heat island (UHI) effect scales with population of a metropolitan area... the bigger the city the larger the UHI effect. UHI is not due to more heat being generated through anthropogenic activity (e.g. air conditioners) but rather it is primarily a land use change issue (e.g. from vegetative to urban). Vegetation is able to regulate heat and ...


3

This is a very interesting topic, since climate and land surface model is becoming more powerful and with higher resolution data available, it is possible to include urban land tiles in the model. The biggest difference of urban region and natural region is the surface albedo and heat capacity. Buildings and roads with dark surfaces have a lower albedo and ...


2

Now, What challenges and possibilities are there in this particular research field? Now that urban effects on regional weather can be observed, modeled, and to a large degree verified, all that remains on the science side is improving forecast resolution. Serious work, however, is being done on the policy side given these new cause and effect scenarios, ...


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