Urban heat islands in the Arctic cities: an updated compilation of in situ and remote-sensing estimations

• DOI: 10.5194/asr-18-51-2021
• Publication Date: 2021-05-03T08:33:33Z
• Authors: Igor Esau; Victoria Miles; Andrey Soromotin; Oleg Sizov; Mikhail Varentsov; Pavel Konstantinov
• Keywords: Urban Heat Island; Moderate-resolution imaging spectroradiometer

Abstract. Persistent warm urban temperature anomalies – heat islands (UHIs) significantly enhance already amplified climate warming in the Arctic. Vulnerability of infrastructure Arctic cities urges a region-wide study UHI intensity and its attribution to drivers. This presents an overview surface atmospheric UHIs all circum-Arctic settlements (118 total) with population larger than 3000 inhabitants. The (SUHI) is obtained from land (LST) data products Moderate Resolution Imaging Spectroradiometer (MODIS) archive over 2000–2016. screen-level provided by Urban Heat Island Research Campaign (UHIARC) observational network 2015–2018. Several other studies are included for comparisons. analysis reveals strong persistent during both summer winter seasons. annual mean magnitudes vary −0.6 ∘C (Hammerfest) 4.3 (Murmansk). Thus, observed likely important climatic factor that must be future adjustment construction, safety, environmental quality codes.