Table 3 Ratio of mean winter solar insolation/mean summer solar insolation and ratio of minimum mean monthly insolation/maximum mean monthly insolation: example onset locations by latitude group (N = 4876)
Degrees latitude north + south | Onset location | Ratio mean winter insolation/mean summer insolation | Ratio minimum mean monthly insolation/maximum mean monthly insolation |
|---|---|---|---|
0–9 | Kampala, Uganda Kuala Lumpur, Malaysia Mataram, Indonesia Medellín, Columbia Singapore | 1.1400 0.9702 1.0125 0.9065 1.0560 | 0.8197 0.7694 0.7831 0.8370 0.7797 |
10–19 | Bahir Dar, Ethiopia Bangkok, Thailand Bengaluru, India Hyderabad, India Mexico City, Mexico Salvador, Brazil | 1.1639 1.0680 1.1702 1.1762 0.9074 0.6844 | 0.7713 0.7207 0.6814 0.6421 0.6855 0.6246 |
20–29 | Hong Kong, China São Paulo, Brazil Taichung, Taiwan Wardha, India | 0.6603 0.7419 0.4492 1.1545 | 0.6016 0.6050 0.3931 0.5750 |
30–39 | Ankara, Turkey Athens, Greece Beer Sheva, Israel Buenos Aires, Argentina Cagliari, Italy Cape Town, South Africa Los Angeles, CA, USA Melbourne, Australia San Francisco, CA, USA Santiago, Chile Seoul, South Korea Tokyo, Japan Tunis, Tunisia | 0.3266 0.3148 0.4246 0.3978 0.3066 0.3873 0.4235 0.3628 0.4163 0.3537 0.6406 0.7201 0.3695 | 0.2374 0.2319 0.3556 0.3149 0.2328 0.3227 0.3503 0.2913 0.3137 0.2879 0.4404 0.5574 0.2859 |
40–49 | Belgrade, Serbia Barcelona, Spain Boston, MA, USA Christchurch, New Zealand Grand Rapids, MI, USA Halifax, Canada Minneapolis, MN, USA Paris, France Rome, Italy Siena, Italy Vienna, Austria Würzburg, Germany | 0.2832 0.3622 0.3626 0.3225 0.3281 0.3300 0.3339 0.2317 0.2993 0.2988 0.2631 0.2381 | 0.1960 0.2603 0.2662 0.2461 0.2256 0.2270 0.2371 0.1540 0.2203 0.2077 0.1667 0.1477 |
50–59 | Aarhus, Denmark Calgary, Canada Dresden, Germany Dublin, Ireland Oslo, Norway Poznan, Poland Stockholm, Sweden Tartu, Estonia | 0.1432 0.2269 0.2255 0.1927 0.1126 0.2127 0.1087 0.1353 | 0.0782 0.1454 0.1379 0.1149 0.0433 0.1290 0.0427 0.0562 |
60 + | Helsinki, Finland Khanti-Mansiysk, Russia Trondheim, Norway | 0.1095 0.0951 0.0673 | 0.0359 0.0243 0.0116 |