Análisis bidimensional de la investigación

Advection Hor i zon tal air move ments

Albedo Re flec tivity

Anthropogenic heat Heat re lease from hu man ac tiv i ties.

At mo spheric sta bil ity The at mo sphere is said to be un sta ble when the air tem per a ture de creases with height (typ i cal for sunny days when so lar ra di a tion in duces nat u ral con vec tion), sta ble when the air tem per a ture in creases with height (typ i cal for calm nights) and neu tral when there is no tem per a ture gra di ent.

Den sity (build ing) Amount of the ground oc cu pied by build - ings.

Den sity (res i den tial) No. of per sons per unit of land (or no. of hous ing units per unit of land).

Dry bulb tem per a ture The air tem per a ture of a dry ther mom e ter. Emmisivity The ra tio of en ergy emit ted from a sur face

com pared to a black body.

Evapotranspiration Loss of wa ter to the air due to com bined evap o ra tion and tran spi ra tion.

Floor area ra tio (FAR) The ra tio be tween the to tal gross area of a all floors of a build ing and the plot area Forced con vec tion Air mo tion caused by wind.

Global ra di a tion The sum of di rect and dif fuse so lar ra di a tion. Globe ther mom e ter A ther mom e ter en closed in a black painted

globe used to mea sure the mean ra di ant tem per a ture.

Im per vi ous sur face A sur face through which wa ter can not pen e - trate.

Land-use The ac tiv ity land is used for.

La tent heat The heat re quired to change the state of wa - ter, e.g. from liq uid to vapour, with out change of tem per a ture.

Long-wave ra di a tion “Low tem per a ture” ra di a tion, e.g. heat ra di a - tion from build ing sur faces.

Mas ter plan Doc u ment de scrib ing, in words and with maps, an over all de vel op ment con cept in - clud ing both pres ent land-uses as well as fu - ture land de vel op ment.

Mean ra di ant tem per a ture (MRT)

The tem per a ture of an imag i nary en clo sure with which the hu man body would ex - change the same ra di a tion as with the ac tual en vi ron ment.

Me dina Here used in the con text “old”, his toric city. Nat u ral (free)

con vec tion

Ver ti cal air mo tion due to den sity dif fer - ences.

Octa Unit that ex presses the por tion of the sky

cov ered with clouds (equal to one-eighth of the sky vault).

Phys i o log i cally

equiv a lent tem per a ture

The air tem per a ture in a typ i cal in door set - ting at which the heat bal ance of the hu man body is main tained with core and skin tem - per a tures equal to those of the ac tual en vi - ron ment

Plot cov er age The amount of a plot cov ered by build ings. Sen si ble heat Heat en ergy that can be sensed, i.e. mea -

sured by a ther mom e ter.

Set back A re quired dis tance from the plot bor der to the build ing oc cu py ing the plot.

Shanty town In for mal set tle ment with “non-per ma nent” build ings, of ten lack ing land own er ship. Short-wave ra di a tion “High tem per a ture” ra di a tion emit ted by the

sun.

Sky view fac tor (SVF) The por tion of the sky that can be seen from a point on a sur face.

Slum area Area of per ma nent build ings in very poor con di tion and lack ing ba sic san i tary fa cil i - ties.

So lar al ti tude The ver ti cal an gle be tween the sun’s po si - tion and the ho ri zon.

So lar az i muth The hor i zon tal an gle of the sun in re la tion to north.

Spon ta ne ous set tle ment

Un planned, non-reg u lar ized, and of ten il le - gal, hu man set tle ment.

Ther mal ad mit tance The abil ity of a sur face to take up or re lease heat (also called the heat pen e tra tion co ef fi - cient).

Tur bu lence A state of the air in which air speed and di - rec tion vary ran domly.

Ur ban can opy layer The at mo spheric layer be tween the ground and the roof tops

Ur ban street can yon The space de lim ited by the street and the façades of the build ings along the street Ur ban de sign Part of ur ban plan ning that fo cuses on the

de sign of places, i.e. build ings and the three-di men sional space be tween them. It is of ten de fined as an in ter me di ate scale be - tween ar chi tec ture and ur ban plan ning. Ur ban fab ric The phys i cal struc ture of an ur ban area. Ur ban form The phys i cal form of an ur ban area con sist -

ing of street pat terns, build ing sizes and shapes, ar chi tec ture, and den sity. Ur ban growth The in crease in ur ban pop u la tion.

Ur ban iza tion The growth of the pro por tion of ur ban pop u - la tion in a coun try.

Ur ban heat is land Ur ban ar eas be ing warmer than the sur - round ing ru ral ar eas. Pri mar ily a noc tur nal phe nom e non.

Ur ban sprawl Hor i zon tal growth of a city through low-den - sity de vel op ments.

U-value The amount of heat per unit area that passes

through a build ing el e ment.

Vapour pres sure The par tial pres sure of the air due to wa ter vapour.

Wilaya Here: ad min is tra tive re gion (Mo rocco). Appendix 1