mahoney's table
TRANSCRIPT
MAHONEY’S TABLE
Climatology is the study of climate, scientifically defined as weather conditions averaged over a period of time. This modern field of study is regarded as a branch of the atmospheric sciences and a subfield of physical geography, which is one of the earth sciences. Climatology now includes aspects of oceanography and biogeochemistry.
Location Baghdad, IraqLongitude 44° 24´ E. Latitude 33° 20´ N.Altitude 34 m
J F M A M J J A S O N D High AMT
Monthly mean max. 16 18.5 22 29 36 41 43.5 43.5 40 34 24.5 17.5 43.5 23.5
Monthly mean min. 4 5.5 9 14.5 20 23.5 25.5 24.5 21 16 10.5 5 4 39.5
Monthly mean range 12 13 13 14 16 17.5 18 18 19 18 14 12.5 Low AMR
Air temperature : °C
Humidity group: 1 If average RH: below 30 %
2 30-50 %
3 50-70%
4 Above 70 %
Monthly mean max. a.m. 87 78 74 68 46 34 32 32 38 50 67 89
Monthly mean min. p.m. 50 41 35 27 18 13 12 13 15 21 39 51
Average 68.5 59.5 54.5 47.5 32 23.5 22 23.5 26.5 35.5 53 70
Humidity group 3 3 3 2 2 1 1 1 1 2 3 3
Rainfall, mm 24 25 28 15 7 0 0 0 0 3 22 26 150 Total
Wind, prevailing NW.
NW.
NW.
NW.
NW.
NW.
NW. NW.
NW.
NW.
NW. NW.
Wind, secondary SE. SE. N N N N N & W N N N N SE
J F M A M J J A S O N D
AMT over 20 °C
AMT 15-20 °C
AMT below 15 °C
Comfort limits Day Night Day Night Day Night
Humidity groups 1 26-34 17-25 23-32 14-23 21-30 12-21
2 25-31 17-24 22-30 14-22 20-27 12-20
3 23-29 17-23 21-28 14-21 19-26 12-19
4 22-27 17-21 20-25 14-20 18-24 12-18
J F M A M J J A S Q N D
Monthly mean max. 16 18.5 22 29 36 41 43.5 43.5 40 34 24.5 17.5 23.5 AMT
Day comfort: upper 29 29 29 31 31 34 34 34 34 31 29 29
lower 23 23 23 25 25 26 26 26 26 25 23 23
Monthly mean min. 4 5.5 9 14.5 20 23.5 25.5 24.5 21 16 10.5 5
Night comfort: upper
23 23 23 24 24 25 25 25 25 24 23 23
lower 17 17 17 17 17 17 17 17 17 17 17 17
Thermal stress: day C C C O H H H H H H O C
night C C C C O O H O O C C C
Applicable when: Meaning: Indicator
Thermal stress Rainfall
HumidityGroup
Monthly mean range
Day Night
Air movement essential H1 H 4
H 2.3 Less than 10
Air movement desirable H2 O 4
Rain protection necessary H3 Over 200 mm
Thermal capacity necessary
A1 1,2,3 More than 10
Out-door sleeping desirable
A2 H 1,2
H O 1,2 More than 10
Protection from cold A3 C
INDICATORS
Humid: H1 0
H2 0 Total
H3 0
Arid: A1 √ √ √ √ √ √ √ √ √ √ √ √ 12
A2 √ √ √ √ √ 5
A3 √ √ √ √ 4
J F M A M J J A S O N D
Indicator Totals from Table 2
H1 H2 H3 A1 A2 A3
Layout0-10 1 Orientation north and south
(long axis east-west)11,12 5-12
0-4 2 Compact courtyard planning
Spacing 11,12 3 Open spacing for breeze
penetration2-10 4 As 3, but protection form hot
and cold wind0,1 5 Compact lay-out of estates
Table 3: Recommended Specifications
Indicator Totals from Table 2
H1 H2 H3 A1 A2 A3
0 0 0 12 5 4Layout
0-10 1 Orientation north and south (long axis east-west)11,12 5-12
0-4 √ 2 Compact courtyard planning
Spacing 11,12 3 Open spacing for breeze
penetration2-10 4 As 3, but protection form hot
and cold wind0,1 5 Compact lay-out of estates
Table 3: Recommended Specifications
Air movement
3-12 6 Rooms single banked, permanent provision for air movement
1,2 0-5
6-12 7 Double banked rooms, temporary provision for air movement
02-12
0,1 8 No air movement requirement
Openings
0,1 0 9 Large openings, 40-80%
11,12 0,1 10 Very small openings, 10-20%
Any other conditions 11 Medium openings, 20-40%
Indicator Totals from Table 2
H1 H2 H3 A1 A2 A3
Air movement
3-12 6 Rooms single banked, permanent provision for air movement
1,2 0-5
6-12√
7 Double banked rooms, temporary provision for air movement
02-12
0,1 8 No air movement requirement
Openings
0,1 0 9 Large openings, 40-80%
11,12 0,1 √ 10 Very small openings, 10-20%
Any other conditions 11 Medium openings, 20-40%
Indicator Totals from Table 2
H1 H2 H3 A1 A2 A3
0 0 0 12 5 4
Walls0-2 12 Light walls, short time-lag
3-12 √ 13 Heavy external and internal walls
Roofs0-5 14 Light, insulated roofs
6-12 √ 15 Heavy roofs, over 8 h time-lag
Out-door sleeping 2-12 √ 16 Space for out-door sleeping
required
Indicator Totals from Table 2
H1 H2 H3 A1 A2 A3
0 0 0 12 5 4
Rain protection3-12 17 Protection from heavy rain
necessary