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Comparison of measured and simulated Mean Radiant Temperature: case study in Lisbon (Portugal)

Abstract

Mean Radiant Temperature (MRT) is one of the most relevant human bioclimatic indices, particularly suitable for assessing the influence of climatic parameters on thermal comfort outdoors. MRT can be calculated either from physical measurements, carried out using a globe thermometer or a pyranometer and a pyrgeometer, in order to quantify short and long wave radiation fluxes, or through computer simulation. The first method, although accurate, entails the measurement of radiant fluxes from six directions, therefore it is time consuming, complex and it requires the use of expensive equipment. The second method is based on RayMan, ENVI-met and SOLWEIG computational models, often employed in urban climatological research. The present research deals with the comparison of MRT data obtained by measurement and computational simulation in Campo de Ourique, a densely populated city quarter of Lisbon. The measurements were carried out in a park and in the surrounding canyon streets during four summer days in 2006. The three computational models present some differences regarding their viability in estimating MRT compared to measurement: in case of direct solar exposure RayMan and SOLWEIG provided particularly good approximation (with an average difference of 6 and 9%, respectively), whereas the average overestimation of MRT obtained by ENVI-met is around 20%. However, in shaded locations ENVI-met provided the most acceptable agreement between measured and simulated MRT; in contrast RayMan and SOLWEIG overestimated MRT by 15% on average.

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Comparison of measured and simulated Mean Radiant Temperature: case study in Lisbon (Portugal)

Author: Szűcs, Ágota,Gál, Tamás,Andrade, Henrique
Publisher: Universidade de Lisboa, Centro de Estudos Geográficos
Year: 2014
Source: https://repositorio.ulisboa.pt/bitstream/10451/35586/1/Andrade%20Henrique_2014%281%29.pdf
Finis e a, XLiX, 98, 2014, pp. 95-111
CoMpa iSoN oF MEaSU ED aND SiMULaTED
MEaN aDiaNT TEMpE aTU E.
CaSE STUDY iN LiSBoN (po TUGaL)
Ágo a SzűcS1
aMáS gál2
hen ique and ade3
abs ac – Mean adian empe a u e (M ) is one o he mos ele an human
bioclima ic indices, pa icula ly sui able o assessing he in luence o clima ic pa ame e s
on he mal com o ou doo s. M can be calcula ed ei he om physical measu emen s,
ca ied ou using a globe he mome e o a py anome e and a py geome e , in o de o
quan i y sho and long wa e adia ion luxes, o h ough compu e simula ion. he i s
me hod, al hough accu a e, en ails he measu emen o adian luxes om six di ec ions,
he e o e i is ime consuming, complex and i equi es he use o expensi e equipmen . he
second me hod is based on ayMan, enVi-me and sOLWeiG compu a ional models,
o en employed in u ban clima ological esea ch. he p esen esea ch deals wi h he
compa ison o M da a ob ained by measu emen and compu a ional simula ion in
Campo de Ou ique, a den sely popula ed ci y qua e o Lisbon. he measu emen s we e
ca ied ou in a pa k and in he su ounding canyon s ee s du ing ou summe days in
2006. he h ee compu a ional models p esen some di e ences ega ding hei iabili y
in es ima ing M compa ed o measu emen : in case o di ec sola exposu e ayMan and
sOLWeiG p o ided pa icula ly good app oxima ion (wi h an a e age di e ence o 6 and
9%, espec i ely), whe eas he a e age o e es ima ion o M ob ained by enVi-me
is a ound 20%. Howe e , in shaded loca ions enVi-me p o ided he mos accep able
ag eemen be ween measu ed and simula ed M ; in con as ayMan and sOLWeiG
o e es ima ed M by 15% on a e age.
Keywo ds: Mean adian empe a u e, measu emen , simula ion, ayMan,
enVi-me , sOLWeiG, Lisbon (Po ugal).
esumo – SiMulação e MedidaS in-Si u da eMpe a u a adia iVa Média.
exeMplo eM liSBoa (po ugal). a empe a u a adia i a Média (M ) é um dos índices
ecei ed: Decembe 2013. accep ed: July 2014
1 Uni e si é de La ochelle, a enue Michel C épeau, 17042 La ochelle Cedex, ance.
e-mail: [email p o ec ed]
2 Depa men o Clima ology and Landscape ecology, Uni e si y o szeged, egye em u. 2. 6722
szeged, Hunga y. email: [email p o ec ed]
3  1960-2013 -ins i u e o Geog aphy and spa ial Planning, CeG-iGO - Uni e sidade de Lisboa
96 A. Szűcs, T. Gál and H. And ade
bioclimá icos melho adap ados pa a a ap eciação da in luência dos pa âme os climá icos
no con o o é mico em espaços ex e io es. Pode se de e minada a pa i de medições com
um e móme o-globo ou com pi anóme o e pi geóme o pa a quan i ica os di e sos luxos
de adiação, ou po simulação numé ica. O p imei o mé odo dá esul ados p ecisos, mas
exige a medição dos luxos de adiação em seis di ecções e os apa elhos são ca os. O segund o
mé odo u iliza os modelos ayMan, enVi-me e sOLWeiG, equen emen e usados em
clima ologia u bana. Os esul ados ob idos po medição e simulação o am compa ados no
caso de um bai o u bano denso de Lisboa (Campo de Ou ique). as medições o am e ec-
uadas du an e qua o dias, no Ve ão de 2006, num espaço e de e uas izinhas. O cálculo
de M pelos modelos numé icos dá esul ados algo di e en es. nos locais ao sol, os alo es
ob idos po ayMan e sOLWeiG são os que mais se ap oximam dos alo es medidos (di e-
enças médias de 6% e 9%, espec i amen e), ao passo que enVi-me os sob es ima em
20%. nos locais à somb a, enVi-me o nece o melho esul ado, ao passo que ayMan e
sOLWeiG sob es imam os alo es em 15%.
Pala as-cha e: empe a u a adia i a Média, medição, simulação numé ica,
ayMan, enVi-me , sOLWeiG, Lisboa (Po ugal).
ésumé – SiMula ion e MeSu e in-Si u de la eMpé a u e adian e
Moyenne. un exeMple à liSBonne (po ugal). La empé a u e adian e Moyenne
(M ) es un des indices bioclima iques le plus adap é pou app écie l’in luence des pa a-
mè es clima iques su le con o he mique en espace ex é ieu . elle peu ê e calculée soi
à pa i des mesu es physiques e ec uées pa un he momè e di “globe” ou a ec un py a-
nomè e e un py geomè e pou quan i ie les lux de adia ion, soi pa simula ion numé-
ique. La p emiè e mé hode donne des ésul a s p écis, mais exige la mesu e des lux selon
six di ec ions. elle es longue e compliquée à me e en œu e, en plus l’appa eil de mesu e
es coû eux. La secon de mé hode u ilise les modèles ayMan, enVi-me e sOLWeiG,
cou ammen employés dans les eche ches de clima ologie u baine. Les ésul a s ob enus
pa ces deux mé hodes on é é compa ées dans le cas d’un qua ie u bain dense si ué à
Lisbonne: Campo de Ou ique. Les mesu es on é é e ec uées pendan 4 jou s, en é é 2006,
dans un pa c e dans des ues en i onnan es. Les modèles numé iques u ilisés mon en
quelques di é ences en ce qui conce ne leu alidi é pou calcule la M . Pou les
end oi s ensoleillés, les aleu s ob enues pa ayMan e sOLWeiG co esponden le plus
aux aleu s mesu ées (la di é ence moyenne é an espec i emen de 6 e de 9 %), cepen-
dan enVi-me les su es ime de 20% en moyenne. Dans le cas des end oi s omb agés,
enVi-me ou ni l’app oxima ion la plus pe inen e, alo s que ayMan e sOLWeiG
p ésen en une su es ima ion de 15%, en moyenne.
Mo s-clés: empé a u e adian e Moyenne, mesu e, simula ion numé ique,
ayMan, enVi-me e sOLWeiG, Lisbonne (Po ugal).
97
Compa ison o measu ed and simula ed Mean Radian Tempe a u e
i. esea CH COn eX
na u al and a i icial su aces can be ound in u ban en i onmen s whe e mo e
han hal o he ea h’s popula ion li es. he o me su aces can be mine al o con-
ain ege a ion whe eas he la e can be dense o po ous and made o me al, glass
e c. he a mosphe ic a iables in u ban a eas, and he e o e human he mal com o
ou doo s, a e signi ican ly a ec ed by he geome y o he con olu ed u ban en i-
onmen and by he physical cha ac e is ics o he ma e ials.
nowadays, public awa eness has been aised owa ds he a ious consequences
o u banisa ion and, among hem, he u ban hea island phenomena (UHi).
he UHi is a esul o a combina ion o ac o s a ec ing he local ene gy
balan ce, such as he building geome y, su ace oughness, physical p ope ies o
building ma e ials, an h opogenic hea sou ces e c. (Oke, 1982, in yow, 2007).
acco ding o Oke (1982) and a n ield (2003) seasonal clima ic and daily synop ic
condi ions, such as diu nal cycle, play an impo an ole in de e mining UHi cha-
ac e is ics. he e o e, each u ban a ea has a speci ic UHi uniqueness due o he
ci cums ances a a gi en loca ion.
he e a e a ious ypes o UHi and se e al me hods o obse ing and s udying
hem. UHi occu s a g ound le el, a di e en heigh s and as su ace hea islands.
a mosphe ic UHi may be measu ed wi hin he plane a y bounda y laye (abo e he
ci y) and in he u ban canopy (up o he op o he buildings o he u ban zone). he
su ace UHi occu s a he le el o he a ious u ban su aces and yow (2007) e e s
o i as skin su ace empe a u e. su ace UHi has a pa icula ly s ong e ec on
adia i e en i onmen and he e o e on he mal com o o humans in ou doo u ban
en i onmen s, especially in case o s ong sola adia ion exposu e. i can exace ba e
he mal discom o , in pa icula du ing wa m summe pe iods: he a i icial su -
aces, such as asphal and conc e e abso b hea du ing day ime, wa m up he ai by
con ec ion and elease hea in o he a mosphe e du ing he nigh (Oke, 1982;
Ku le , 2008; a mson e al., 2012). he educ ion o ege a ion and he inc ease o
a i icial su aces lead o lowe albedo (and he dec ease o e lec ed sho -wa e
adia ion) and o he educ ion o e apo anspi a ion (in o he wo ds, he dec ease o
cooling due o la en hea ans e ).
a mosphe ic and su ace UHi ep esen an impo an p oblem du ing ho sum-
me pe iods ha occu egula ly in sou he n eu ope. he inc eased use o ai condi-
ioning du ing hese pe iods eleases mo e hea in o he ou side ai which adds o he
high sho and long wa e adia ion luxes in he u ban en i onmen esul ing in
ex en ded and mo e equen he mally uncom o able pe iods. hese in u n gi e ise
o heal h p oblems especially among child en and he elde ly.
he UHi phenomenon is p edic ed o inc ease wi h clima e change, since mean
empe a u es, he equency o hea wa es and hei du a ion a e o ecas ed o ise
(Vanos e al., 2010).
98
he p esen s udy aims o e alua e he compu a ionally simula ed M alues
agains in-si u measu ed M alues. M was measu ed and e alua ed in an u ban
ga den and also in su ounding s ee s − bo h on shaded and sunexposed sides.
ii. He MaL COM O in OU DOO enVi OnMen s
he human body exchanges ene gy wi h i s en i onmen h ough con ec ion,
conduc ion and adia ion. in an ou doo en i onmen he clima ic pa ame e s a y o
a subs an ially la ge ex en han in an indoo en i onmen : in pa icula , long-, and
sho wa e adia ion, ai mo emen , su ace and ai empe a u es. as a consequence,
he human body needs o adap o he ex ended ange o en i onmen al ou doo con-
di ions h ough i s he mo egula ion sys em, in o de o main ain a cons an deep
body empe a u e. he mal com o signi ies a s a e whe e he cons an deep body
empe a u e can be main ained by he leas ene gy exchange occu ing a he body’s
su ace. Discom o desc ibes he depa u e om com o .
in e ms o human he mal com o , ou doo s he mal condi ions a e s ongly
in luenced by empe a u e and e en mo e so by adia ion, whose a iable pa e n
induce la ge di e ences be ween sun-exposed and shaded zones (Ége házi e al.,
2013; Kán o e al., 2012).
he Mean adian empe a u e (M ) is one o he indices ha akes in o
accoun all sho and long-wa e adia i e lux eaching he indi idual and is
applicable in complex ou doo en i onmen s. i in eg a es he incoming and
e lec ed di ec and di use sho wa e adia ion, as well as long wa e adia ion om
he su ounding su aces, he g ound and om he sky.
in wha conce ns he human he mal com o ou doo s, conduc i e hea luxes
can be neglec ed. On he con a y, adia i e and con ec i e luxes play an impo an
ole in he hea balance o he human body. Con ec i e luxes o la en and sensible
hea a e modi ied mainly by ai humidi y and ai empe a u e, espec i ely, while
bo h a e in luenced by wind speed (Kán o e al., 2012). Howe e , he M is he
key ac o a ec ing he mal com o in case o s ong di ec sola adia ion.
MRT can be measu ed wi h a globe he mome e − a ool used o iginally in
indoo en i onmen al condi ions and la e adap ed o ou doo se ings. he s anda d
globe he mome e is a hollow sphe e o coppe , pain ed black and con aining a he -
mome e in i s cen e. he wall hickness is 0.4mm and he sphe e diame e is
150mm. he empe a u e measu ed in he cen e o he globe he mome e esul s
om adia i e and con ec i e luxes. indoo s, whe e ai mo emen is es ic ed, he
globe empe a u e gi es a good app oxima ion o M , whe eas in ou doo loca ions
i s eading is signi ican ly in luenced by con ec ion and is close o ai empe a u e.
he e o e i is no an ideal ool o measu e M ou doo s.
A. Szűcs, T. Gál and H. And ade

99
M can also be measu ed using a py geome e and a py anome e , p oposed
by Höppe and also sugges ed by VDi 3789 Guideline (Höppe, 1992; VDi, 1998).
i equi es cos ly equipmen and he measu emen p ocedu e is edious and ime-
consuming. e es ial and sola adia ion luxes ha all on a pe son a e measu ed
sepa a ely: a py anome e is used o measu e adia i e luxes wi hin he sho wa e
domain and a py geome e is used o eco d adia i e luxes si ua ed in he long-
wa e domain. he 3D space is di ided in o six pa s: uppe and lowe di ec ions, and
he ou ca dinal di ec ions. he di e en di ec ions ha e di e en weigh ing ac o s
acco ding o he body’s posi ion (sea ing down o s anding) (Kán o e al., 2012)
he mean adian lux densi y (ss in W/m2) abso bed by he indi idual is cal-
cula ed om he measu ed e es ial (Li in W/m2) and sola (Ki in W/m2) luxes in he
abo e men ioned six di ec ions, mul iplied by he weigh ing ac o s (Wi) acco ding
o he body shape co esponding o each di ec ion (i = 1 o 6), and by he abso p ion
coe icien s o he clo hed body om sho − (ak), and longwa e adia ion (al) − as
equa ion 1 illus a es (Höppe, 1992, in Kán o e al., 2012).
eq. 1
he M can be calcula ed om ss acco ding o he s ephan –Bol zmann law,
using equa ion 2 (Kán o e al., 2012):
eq. 2
whe e
σ is he s e an-Bol zmann cons an and
εp is he emissi i y o he clo hed human body which is equal o al acco ding o
K ichho ’s law (Kán o e al., 2012).
in o de o a oid di icul and leng hy measu emen s, a ious compu a ional
models can be used o es ima e M : ayMan (Ma za akis e al., 2000; Ma za akis
e al., 2007), enVi-me (B use, 1999 and 2006) and sOLWeiG (Lindbe g e al.,
2008; Lindbe g and G immond, 2011).
he p esen esea ch p o ides a de ailed compa ison o compu e simula ed
M alues wi h measu ed M a Campo de Ou ique, a densely popula ed ci y
qua e o Lisbon, Po ugal. i is he ex ension o a p e ious esea ch p ojec ca ied
ou by Oli ei a e al. (2011), which ocused on he assessmen o he he mal pe o -
mance o an u ban ga den and i s in luence on he a mosphe ic pa ame e s in he
neighbou ing a ea.
Compa ison o measu ed and simula ed Mean Radian Tempe a u e
100
iii. s UDy a ea
he chosen s udy a ea is si ua ed in Lisbon, a ci y loca ed nea he wes e n
coas o Po ugal, a 38°43’ la i ude n and 9°9’ longi ude W, lying 30km o he eas
o he a lan ic sho e, on he agus i e es ua y (alco o ado e al., 2009). Lisbon’s
clima e is “Medi e anean” wi h mild win e s and ho , d y summe s. he ho es
mon h is augus (a e age empe a u e: 23°C), ollowed by July (22.7°C) and
sep embe (21.8°C) (alco o ado e al., 2009). he p e ailing wind in summe blows
om n and nW du ing he whole day (40% o he ime) and du ing la e a e noon
(30% o he ime) (alco o ado e al., 2006). o al a e age p ecipi a ion is less han
7mm in July and augus , while i inc eases o 28mm in sep embe .
he s udied u ban qua e is si ua ed in a densely buil -up zone in he wes e n
pa o Lisbon, close o he Monsan o hill o es pa k. he s udy a ea is ela i ely la
wi h an al i ude o app oxima ely 90m abo e sea le el. i has a ga den, he Ga den
Teó ilo de B aga, su ounded by 15-25m high buildings along a n-s and e-W
o ien ed ne wo k o app oxima ely15 m wide s ee s (Oli ei a e al., 2011). he
a e age sky iew ac o o he s ee s calcula ed by ayMan is 0.28, which leads o
p onounced di e ences ega ding du a ion o insola ion along he longi udinal axis
o he n-s and he e-W o ien ed s ee s: 3.5 hou s o he o me and 11 hou s o he
la e (Oli ei a e al., 2011).
he ga den has a ec angula shape and occupies 0.58ha. i is a pleasan place
o es , con empla ion o na u e and ec ea ion. i has a small lake in i s cen e
and a dense plan communi y consis ing mos ly o deciduous ees (Oli ei a
e al., 2011).
iV. Me HODOLOGy: MeasU eMen anD COMPU e siMULa iOn
i ine an measu emen campaigns we e ca ied ou in 2006 du ing ou
summe days, a 2 loca ions in he ga den (poin s 1 and 2) and a 4 loca ions in he
neighbou ing s ee s (poin s a, C, D, e), as shown in igu e 1, in o de o measu e
ai empe a u e, ela i e humidi y, wind speed, sho and long wa e adia ion. he
measu emen poin s we e chosen so ha hey could p o ide some in o ma ion on
he in luence o he ga den on mic oclima ic pa ame e s in di e en s ee o ien-
a ions and in s ee s wi h and wi hou ees. Poin s a, C and D a e si ua ed in
s ee s wi h no ees and a n-s, nW-se and e-W di ec ion espec i ely. Poin e is
loca ed in a n-s di ec ion s ee lined wi h dense ows o ma u e ees. Poin 1
is si ua ed wi hin he ga den, in a loca ion whe e people enjoy si ing a ables, and
is exposed o sun du ing he en i e a e noon, while poin 2 is cons an ly unde
shade p ojec ed by he ee c owns.
A. Szűcs, T. Gál and H. And ade
101
ig. 1 – Loca ion o obse a ion poin s (www.googlemaps.com), ed awn om Oli ei a e al. (2011).
Fig. 1 – Localização dos pon os de obse ação (www.googlemaps.com), edesenhada a pa i
de Oli ei a e al. (2011).
ig. 2 – Obse a ion poin s: s ee iews. Pho os om Oli ei a e al. (2011).
Fig. 2 – Pon os de obse ação. Fo og a ias de Oli ei a e al. 2011.
Compa ison o measu ed and simula ed Mean Radian Tempe a u e
102
ai empe a u e, ela i e humidi y and wind speed we e eco ded a all si es,
a a heigh o 1.5 m, using es o p obes, while inciden sho -, and longwa e adia-
ion om six di ec ions we e measu ed a a heigh o 1.1m, using CM21 Kipp &
Zonen py anome e and a CG1 Kipp & Zonen py geome e , espec i ely. he mea-
su emen s we e pe o med acco ding o he in eg al measu emen me hod de e-
loped ini ially by Jend iz ky and nüble (Jend iz ky and nüble , 1981; VDi, 1988;
Oli ei a e al., 2011; Kán o and Unge , 2011) du ing he ea ly a e noon hou s
when mos people isi he ga den o ind shel e om he summe hea . he py a-
nome e measu es he sho wa e adia ion (K), and he py geome e he long wa e
adia ion luxes (L). K and L ha e been eco ded o he ou ca dinal di ec ions, as
well as downwa ds and upwa ds. he mean adia ion lux in ensi y abso bed by he
human body was calcula ed using he e es ial and he sola adia ion luxes,
weigh ed acco ding o he di ec ion and he abso p ion coe icien o he body o
sho and longwa e adia ion. he M was calcula ed acco ding o he s e an-
Bol zmann law (Oli ei a e al., 2011) aking in o accoun he di ec ion o he sola
and he mal in a ed adia i e luxes. he M can be conside ed as an indica o o
all su ace empe a u es combined and as an o e all desc ip o o pe cep ion ega -
ding he adia i e en i onmen su ounding he human body, and he e o e is a
biome eo ological indica o .
wo se s o in-si u measu emen we e ca ied ou consecu i ely a each s ee
poin , one in he shade and he o he unde di ec sola adia ion ( he ins umen was
mo ed om he shade o he sun), in o de o de ec he impac o sola adia ion.
he measu emen equipmen s ayed in place o 10-15 minu es du ing each mea-
su emen a he sun exposed and a he shaded loca ions.
able i – Obse a ion poin s, equipmen used and measu ed pa ame e s.
Measu emen s we e ca ied ou be ween 13:00 and 15:00 on 07/08/2006, 09/08/2006,
10/08/2006 and 05/09/2006.
Quad o I – Pon os de obse ação, equipamen o usado e pa âme os me eo ológicos medidos
en e as 13:00 e as 15:00 em 07/08/2006, 09/08/2006, 10/08/2006 e 05/09/2006.
Obse a ion Poin s Loca ion equipmen (pa ame e s
measu ed)
1 Ga den (sun) Ho wi e anemome e ( )
CM21 Kipp & Zonen
py anome e (K)
CG1 Kipp & Zonen
py geome e (L)
es o p obes ( , , H)
2 Ga den (shade)
a s ee – o ien a ion: n s
C s ee – o ien a ion: nW - se
D s ee – o ien a ion: e W
e s ee – o ien a ion: n s
A. Szűcs, T. Gál and H. And ade
109
Compa ison o measu ed and simula ed Mean Radian Tempe a u e
Vi. COnCLUsiOn
Modelling M ep esen s a challenge o esea che s in u ban clima ology
pa icula ly in complex en i onmen s, ha include buildings om a ious a chi ec-
u al pe iods, cons uc ed wi h di e en ma e ials, as well as ege a ion ha has e y
di e en physical cha ac e is ics om he buildings.
he esul s ob ained in Campo de Ou ique dis ic , h ough simula ions and
h ough physical measu emen s, highligh some di e ences in he iabili y o he
h ee es ed models o es ima e M .
in gene al, i can be s a ed ha he e is always a es ed compu a ional model
ha p o ides M es ima ions wi h an accep able ag eemen wi h he in-si u mea-
su emen s, o he en i e se o alues. among he h ee models, ayMan has p o-
ided a pa icula ly good i o si es exposed o di ec sola adia ion. enVi-me
o e es ima ed subs an ially he M in case o di ec sola exposu e: he simula-
ed alues exceed hose measu ed by 15ºC on a e age, and in some cases he di e-
ence eaches 20°C. sOLWeiG p o ided mo e p ecise esul s han enVi-me o
he sola exposu e case, wi h abou 4-5°C di e ence o he measu ed M alues.
he la ge e o s occu ing using enVi-me indica e he ayMan model as he i s
choice o M es ima ion in si es unde sola exposu e and he sOLWeiG as he
second choice.
a shaded loca ions, simula ion esul s ob ained by enVi-me p esen he
bes i wi h obse ed da a. ayMan o e es ima es he M by 15-20°C, as does
sOLWeiG, albei o a smalle ex en . as a consequence, enVi-me is e ained as
he be e adap ed ool o M simula ion o shaded loca ions, agains ayMan
and sOLWeiG.
he a en ion d awn o he quali y o li e in u ban a eas by s udies o he mal
com o is o g ea impo ance when designing o enewing u ban a eas as he num-
be o u ban ci izens is cons an ly inc easing. he mal ambience has o be planned
concomi an ly wi h buildings, s ee s, ege a ion e c. an ea ly-phase inclusion o
clima ic pa ame e s in o he a chi ec u al and landscape design p ocess p omo es he
c ea ion o com o able, mo e pleasan and heal hie open spaces.
aCKnOWLeDGeMen s
his esea ch has been ca ied ou a he Cen e o Geog aphical s udies o he Uni e si y o
Lisbon, oge he wi h he la e Hen ique and ade (1960-2013) in he ame o he U BKLiM P ojec .
One yea a e his passing away, his pape is also p esen ed as homage o him. he au ho s would like
o s a e ha some esul s o he p esen esea ch ha e been published p e iously in con e ence p ocee-
dings (And ade and Szűcs, 2011).They exp ess hei g a i ude o D Be nade Balázs, D Ágnes
Gulyás, D ed ik Lindbe g o he assis ance p o ided in using enVi-me , ayman and sOLWeiG
models. hanks a e also due o he anonymous e e ees who ha e helped o imp o e he manusc ip .

110 A. Szűcs, T. Gál and H. And ade
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