They say that location is everything in real estate, and when it comes to measuring urban heat, where you collect your data will have an impact on the accuracy of your results.
A new study out of London illustrates just how important it is to take certain variables into account if you want to get an accurate measurement of urban heat. In this case, tracking night time urban heat in a park full of trees means that previous measurements may have underestimated the urban heat island effect by as much as 45 percent.
Until now, the effect has been measured by calculating the difference between temperatures in St James’ Park in the city, and Wisley – a rural site just outside the M25.
But new research, published in the journalScience of the Total Environment, found night time temperatures in parks can be up to 4°C cooler than in the streets nearby. So the St James’ Park measurements might have dramatically underestimated the urban heat island in the capital.
‘In the summer time, built-up areas effectively act like a storage heater,’ says Dr Kieron Doick of Forest Research, the research agency for the UK Forestry Commission, who led the research. ‘They store up heat during the day and release it at night.’
‘The extra heat can pose a real health risk, so it’s important to understand the impact that planning decisions have on temperatures in our cities.’
The study mentioned in this article can be found at:
"""Maeneo ni kila kitu katika mali isiyohamishika, na linapokuja kupima joto la mijini, mahali unakusanya data yako itakuwa na athari kwa usahihi wa matokeo yako.""" Utafiti mpya uliofanywa London unaonyesha jinsi muhimu ni kuchukua baadhi ya vigezo katika akaunti kama unataka kupata kipimo sahihi cha joto la mijini. Kwa mfano, kwa sababu ya joto la usiku katika bustani iliyojaa miti, kipimo cha awali cha joto la kisiwa cha joto cha jiji kilikuwa chini ya asilimia 45. Kwa sasa, athari hiyo imepimwa kwa kuhesabu tofauti ya joto kati ya St James Park mjini na Wisley, eneo la mashambani nje ya barabara kuu ya M25. Utafiti wa hivi karibuni uliochapishwa katika jarida la Sayansi ya Mazingira ya Jumla, uligundua kuwa joto la usiku katika mbuga za wanyama linaweza kuwa la chini ya 4 ° C kuliko katika barabara zilizo karibu. Kwa hiyo vipimo vya St James' Park huenda viliipunguza sana kisiwa cha joto cha mijini katika mji mkuu. "Katika majira ya joto, maeneo yaliyojengwa kwa ufanisi hufanya kazi kama joto la kuhifadhi, ""anasema Dk Kieron Doick wa Utafiti wa Msitu, shirika la utafiti la Tume ya Misitu ya Uingereza, ambaye aliongoza utafiti huo." "Hii ni kwa sababu joto la joto la joto la joto linaweza kuwa hatari kwa afya, na kwa hivyo ni muhimu kuelewa athari za mipango ya mipango ya joto katika miji yetu. """