13.9.2022 URBAN CLIMATOLOGY Map of the local climate zones practical excercise Local Climate Zones - basic premises • Urban climate is highly variable in space and time • To study the urban climate, we need to classify it somehow • One of the main factors that create a characteristic urban climate is land cover (= active surface) • Land cover mapping may serve as a basis for urban climate classification • In urban climatology, the concept of the Local Climate Zones was created during the last decade 1 13.9.2022 2 Local Climate Zones - What is it useful for? Local Climate Zones classification system BUILT SERIES nil" LAND COVER SERIES LCZ1 Compact hiyli-i LCZ 2 Compact mid-ria LCZ 3 Compact low-riK ! LCZ 4 Open Wgtvrtse LCZ 5 □pen mid-rise LCZ 5 □pan low-rise LC2 7 LI gum* Ig h: low-* LCZB Largs low-rise ■'■ 1 ■'■ ii Sparsely buft >H a■ "j, w LCZ JO rt'VttV Dense bees LCZ S 5cattererE Ireos LCZC Bush, scrub LCZD Low pane LCZE Bare rock or psvad LCZ F Bare seil w sand Ö dry ground (e.g., parched soil) low aOftiitlafwe. large Bonnn rario, -■ l-=l .I'M- I Ilcz Open lowrise Definition r"j; vi. .t.^-:ul?". .-: r;:i-. tx. :u:z.:i .:ft: v.4:. i j." .. often ^i". gnii pattern. 5kv Mfv äjoii ■.[]■:«[ Ls-vil v-lsL::!; "rf.'.iraii. C ™vii n:-.:a::v. v:-r-- ■,■.■(■:■:..";::;].. ;;cl:= rile ::;.™sc: nee: and ibuiidru: plan ::va\ L-r.v .;::.:=■ lirvxis -:.-=h:.-j:-:.. n-rü; flciv. Funciicn: Ee^dentiü (arr]* -u l'.-jv. .n: r ::-,v iaiiir-1 (a-..-:-: : ;amr.a"i:. i':uull retail ■Jljcl- Lcfiwic: '.liieiiii.—- i.ai'.ir-' t-tJ-.sks- ".v. "■ ;I cmajv.rs: m-v.y.v TLx.-. -c-vuv. roOT-?oj«Ariif.-: UCZ5 'OLe !v'34i. Do." i^l]Jf-ai 19SO-91 J. ILLUSTRATION PROPERTIED OB-0.9 rl" I lUJVil ratio OJ-0.75 ''■i:.r,,i'5 ^i-'j.'i 3-10 m 20-40 Ji. ;.vi ."i'i-.t; ivj'.i.v ,r"i 20-50 W Pf'j'i/crü i.r:7!7" ."^^■.' 30-61) M ii'i/rtiV CrJ'rifreff.'NV 1.009- :.3»Iin"! e1" K"' Srir/are .^'J □ 13 0JJ5 Airthopogerue heal flux :::;urEi-_ 13.9.2022 Excercise - LCZs mapping Motivation: Land cover types and spatial structure of built-up areas, which can be directly seen on aerial photographs, well correlate with typical features of local climate in urban environment. Tasks: 1. Explore e.g. Google Earth map (or any other tool) providing detailed aerial view of Your city, this presentation explaining concept of LCZ, and study material (link below) 2. Find a typical representative of individual LCZs in Your city (two typical snapshots) 3. Specify typical position of individual LCZs - for instance w.r.t. the city center 4. Describe each LCZ in a few key words 5. Describe typical LCZs that are well represented in Your city 6. Mention those LCZs that do not occur in Your area https://is.muni.cz/auth/el/sci/podzim2022/ZX601/um/exercise/Local climate zones.pdf Excercise - LCZs mapping Example (elaborated in Google Earth application) 4 Excercise - LCZs mapping Draw 1-3 polygons that well represent individual LCZs in Your city. See Figure below as an example. In Google Earth You can add the legend (LCZ types with selected color) as follows: Right click on My places -> Add -> Folder Create name of the of the folder - e.g. LCZ3 Then right click on LCZ3 folder LCZ3 -> Add -> Polygon Create name of the polygon (e.g. Site_3_l) and select color of the polygon, do not close window and place mouse over the map. Find suitable place - left click defines polygon outer points, right click close the polygon Repeat for 2-3 polygons for each LCZ Now create folder for another LCZ - e.g. LCZ4 and repeat as above Alternatively, You can create only the polygons (without folders). In this case You need to add proper names to individual polygons (see example-figure below) Finally save Your map as follows: File -> Save -> Save folder My places This creates file My places.KMZ on Your computer. Make also a simple print screen of Your map. Excercise - LCZs mapping When finished, write a report shortly discussing: 1) Which LCZs can be easily found (are typical) in Your city according Your opinion 2) Which LCZs do not exist in Your area or which are hard to recognize 3) Briefly describe where in your city there are areas that positively or negatively contribute to the formation of a typical urban climate Besides the text (max 1 page), the final report will include the LCZ map (e.g. printscreen) and a short description of typical LCZs in Your city: LCZ2 - compact mid-rise: short paragraph with the LCZ characteristics LCZ5 - open mid-rise: 13.9.2022 Excercise - final notes and sources • You can do the LCZ map by hand using the similar template as can be seen here: https://is.muni.cz/auth/el/sci/podzim2022/ZX601/um/exercise/exercise brno map template.pdf • It is not necessary to cover the whole area; find just typical spots as a "training sites" • Not all LCZ categories must occur in Your study area 6