Yori Environment
Temperature

The basic temperature (for hex row N-4) is 30.5°C, but this is affected by a number of factors: axial tilt, eccentricity, day and night, and the moderating effect of water found in Scarland. Summer in the northern hemisphere coincides with periastron (closest orbital point to Liecs), and summer in the southern hemisphere coincides with apastron (farthest orbital point from Liecs). The 'arctic circles' lie at about 12° from the poles, and thus cut through the middle of hex row N-10 and S-10.

Base Temperatures (General)
Summer in
Northern
Hemisphere
Summer in
Southern
Hemisphere
Hex
Row
Day
(°C)
Night
(°C)
Day
(°C)
Night
(°C)
N-11 23 -21 -1 -45
N-10 28 -16 4 -40
N-9 32 -12 8 -36
N-8 37 -7 13 -31
N-7 39 -5 20 -23
N-6 42 -2 28 -16
N-5 44 0 36 -8
N-4 47 3 44 0
N-3 51 7 48 4
N-2 56 12 53 9
N-1 60 16 57 13
S-1 60 16 57 13
S-2 56 12 53 9
S-3 51 7 48 4
S-4 47 3 44 0
S-5 39 -5 41 -3
S-6 31 -13 39 -5
S-7 23 -20 36 -8
S-8 16 -28 34 -10
S-9 11 -33 29 -15
S-10 7 -37 25 -19
S-11 2 -42 20 -24

Base Temperatures (Scarland)
Summer in
Northern
Hemisphere
Summer in
Southern
Hemisphere
Hex
Row
Day
(°C)
Night
(°C)
Day
(°C)
Night
(°C)
N-11 17 -15 -7 -39
N-10 22 -10 -2 -34
N-9 26 -6 2 -30
N-8 31 -1 7 -25
N-7 33 1 14 -17
N-6 36 4 22 -10
N-5 38 6 30 -2
N-4 41 9 38 6
N-3 45 13 42 10
N-2 50 18 47 15
N-1 54 22 51 19
S-1 54 22 51 19
S-2 50 18 47 15
S-3 45 13 42 10
S-4 41 9 38 6
S-5 33 1 35 3
S-6 25 -7 33 1
S-7 17 -14 30 -2
S-8 10 -22 28 -4
S-9 5 -27 23 -9
S-10 1 -31 19 -13
S-11 -4 -36 14 -18

Effects
50°C Upper limit of human habitability
37°C Physical strain on human body
30°C Upper limit of human comfort
25°C Upper limit of optimal temperature (room temperature)
18°C Lower limit of optimal temperature (room temperature)
15°C Base temperature for Terra
6°C Minimum for crop growing season
0°C Lower limit of human comfort
-5°C Crop "killing frost" temperature on most worlds
-20°C Lower limit of human habitability
-36°C Hardy plants killed on most worlds
-78°C Carbon dioxide solidifies to form dry ice
(based on Grand Survey © DGP)



Altitude

As altitude increases atmospheric pressure (and thus oxygen pressure) decreases. It also gets colder. The equivalent altitude on Earth (based on oxygen pressure) is 3.5km higher (ie there is the same amount of oxygen at 0km altitude on Yori as there is on Earth at 3.5km). The temperature "lapse rate" is -4.59°C per km.

Altitude
Altitude
(km)
Pressure
(atm)
Oxygen
Pressure
(atm)
Temperature
Change
(°C)
-2.00 1.46 0.18 +9
-1.50 1.38 0.17 +7
-1.00 1.31 0.16 +5
-0.50 1.23 0.15 +2
0.00 1.17 0.14 0
0.50 1.10 0.13 -2
1.00 1.04 0.13 -5
1.50 0.99 0.12 -7
2.00 0.93 0.11 -9
2.50 0.88 0.11 -11
3.00 0.84 0.10 -14
3.50 0.79 0.09 -16
4.00 0.75 0.09 -18
4.50 0.71 0.08 -21
5.00 0.67 0.08 -23
5.50 0.63 0.08 -25
6.00 0.60 0.07 -28
6.50 0.57 0.07 -30
7.00 0.53 0.06 -32
7.50 0.51 0.06 -34
8.00 0.48 0.06 -37
8.50 0.45 0.05 -39
9.00 0.43 0.05 -41
9.50 0.40 0.05 -44
10.00 0.38 0.05 -46


Storms

A storm can mix air from cooler high altitude with air on the ground. During a storm reduce the local temperature by (Severity-1d6)°C ... minimum reduction 0°C.

Beaufort Scale
Severity Name Wind (kph)
0 Calm 1
1 Light air 1-5
2 Light breeze 6-11
3 Gentle breeze 12-19
4 Moderate breeze 20-28
5 Fresh breeze 29-38
6 Strong breeze 39-49
7 Moderate gale 50-61
8 Fresh gale 62-74
9 Strong gale 75-88
10 Whole gale 89-102
11 Storm 103-117
12+ Hurricane 117+


 

   
   

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