24 Hours of Daylight. Farming in Umea

My father in law is a mobile combine harvester engineer and was telling me about a client who grows Malt 10 hours drive North of Stockholm. The planting season is Late May early June, The Snow goes around the second week of May and is back some time in October. But he plants and harvests along with his neighbors several thousand acres most years ( Last Year the Snow beat the Harvest window.) The point being there is 22 hrs of Sunlight June July August September. This made me think about the Solar energy implications in a linked system Nothern and southern hemispheres. Obviously its an interesting example of how our pre disposed notions of what is possible can be challenged?

Umeå - sunrise, sunset, dawn and dusk times for the whole year in a graph

Date Sunrise Sunset Length Change Dawn Dusk Length Change
Today 03:24 22:05 18:41 01:22 23:59 22:37
+1 day 03:27 22:02 18:35 00:06 shorter 01:33 23:50 22:17 00:20 shorter
+1 week 03:46 21:43 17:57 00:44 shorter 02:17 23:09 20:52 01:45 shorter
+2 weeks 04:08 21:20 17:12 01:29 shorter 02:53 22:32 19:39 02:58 shorter
+1 month 04:56 20:25 15:29 03:12 shorter 03:59 21:22 17:23 05:14 shorter
+2 months 06:22 18:40 12:18 06:23 shorter 05:35 19:27 13:52 08:45 shorter
+3 months 07:49 16:56 9:07 09:34 shorter 07:00 17:46 10:46 11:51 shorter
+6 months 08:46 14:56 6:10 12:31 shorter 07:44 15:58 8:14 14:23 shorter
Notes: Daylight saving time, * = Next day. Change preferences.

Umeå, SwedenSunrise, sunset, dawn and dusk times, graph

Umeå - sunrise, sunset, dawn and dusk times for the whole year in a graph

23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00

Darkness Dawn Sunshine Dusk Notes: How to read this graph? Change preferences.

Umeå, Sweden – Sun path diagram

Umeå - Sun path diagram (solar path diagram, sun chart, solar chart)
Sun path
Today
June 21
December 21
Annual variation
Equinox (March and September)
Sunrise/sunset
Sunrise
Sunset
Time
00-02
03-05
06-08
09-11
12-14
15-17
18-20
21-23
Notes: = Daylight saving time, * = Next day. How to read this graph? Change preferences.

Umeå, Sweden – Solar energy and surface meteorology

Variable I II III IV V VI VII VIII IX X XI XII
Insolation, kWh/m²/day 0.10 0.71 2.04 4.01 5.17 5.72 5.11 3.77 2.27 0.98 0.23 0.02
Clearness, 0 – 1 0.26 0.43 0.50 0.56 0.52 0.51 0.48 0.46 0.43 0.40 0.32 0.15
Temperature, °C -8.05 -7.97 -4.49 0.54 7.16 12.51 15.17 13.53 8.79 3.52 -2.15 -6.01
Wind speed, m/s 5.86 5.81 4.99 4.73 4.61 4.27 4.58 4.59 4.92 5.80 5.73 5.87
Precipitation, mm 46 35 34 31 35 38 56 68 64 54 62 50
Wet days, d 18.0 14.8 13.9 11.9 10.9 11.0 12.0 14.0 14.9 15.0 16.9 17.9
These data were obtained from the NASA Langley Research Center Atmospheric Science Data Center; New et al. 2002
Notes: Help. Change preferences.

Umeå, Sweden – Basic information

Latitude: +63.83 (63°49’48″N)
Longitude: +20.24 (20°14’24″E)
Time zone: UTC+1 hours
Local time: 09:59:02
Country: Sweden
Continent: Europe
Sub-region: Northern Europe
Distance: ~900 km (from your IP)
Altitude: ~20 m
Change preferences.


Umeå

Umeå on world map. Features current solar terminator dividing day and dark sides of earth.

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