Editing Aarhus (section)

==Geography==
[[File:Aerial view of Aarhus 2015.jpg|thumb|Aerial view of the bay and city]]
Aarhus is located at the [[Bay of Aarhus]] facing the [[Kattegat]] sea in the east with the peninsulas of [[Mols]] and [[Helgenæs]] across the bay to the northeast. Mols and Helgenæs are both part of the larger regional peninsula of [[Djursland]]. A number of larger cities and towns is within easy reach from Aarhus by road and rail, including [[Randers]] ({{convert|38.5|km}} by road north), [[Grenå]] (northeast), [[Horsens]] ({{convert|50|km}} south) and [[Silkeborg]] ({{convert|44|km}} east).<ref name="GM">{{Google maps|url=http://www.freemaptools.com/how-far-is-it-between.htm|access-date=18 December 2014}}</ref>

===Topography===
At Aarhus's location, the Bay of Aarhus provides a natural harbour with a depth of {{convert|10|m|abbr=on}} quite close to the shore.{{sfn|Olsen|2000|p=124}} Aarhus was founded at the mouth of a brackish water [[Förden and East Jutland Fjorde|fjord]], but the original fjord no longer exists, as it has gradually narrowed into what is now the [[Aarhus River]] and the [[Brabrand Lake]], due to natural [[Sediment transport#Fluvial|sedimentation]]. The land around Aarhus was once covered by forests, remains of which exist in parts of [[Marselisborg Forest]] to the south and [[Riis Skov]] to the north.<ref>{{cite web|url=http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/Jylland/Riis_Skov|title=Riis Skov|publisher=[[Gyldendal]]|access-date=28 July 2014 |language=da}}</ref><ref>{{cite web|url=http://www.dengamleby.dk/museum-aarhus/malerier-fra-aarhus/marselisborgskovene/ |title=Marselisborgskovene |publisher=Den Gamle By |access-date=27 July 2014 |url-status=dead |archive-url=https://web.archive.org/web/20140306053230/http://www.dengamleby.dk/museum-aarhus/malerier-fra-aarhus/marselisborgskovene/ |archive-date=6 March 2014}}</ref> Several lakes extend west from the inner city as the landscape merges with the larger region of [[Søhøjlandet]] with heights exceeding {{convert|152|m|ft}} at [[Himmelbjerget]] between [[Skanderborg]] and [[Silkeborg]].<ref>{{cite web|url=http://www.aarhus.dk/~/media/Dokumenter/Teknik-og-Miljoe/Natur-og-Miljoe/Ud-i-naturen/Stier-og-ruter/6-infotavler-Vandreruten-Aarhus-Silkeborg.ashx|title=Vandreruten Aarhus-Silkeborg|publisher=Aarhus.dk|access-date=1 August 2014|language=da|archive-url=https://web.archive.org/web/20140809204445/http://www.aarhus.dk/~/media/Dokumenter/Teknik-og-Miljoe/Natur-og-Miljoe/Ud-i-naturen/Stier-og-ruter/6-infotavler-Vandreruten-Aarhus-Silkeborg.ashx|archive-date=9 August 2014|url-status=dead}}</ref> The highest natural point in Aarhus Municipality is Jelshøj at 128 metres above sea level, in the southern district of [[Højbjerg]]. The hilltop is home to a [[Nordic Bronze Age|Bronze Age]] barrow shrouded in local myths and legends.<ref>{{cite web |url=http://fortidsmindeguide.dk/Jelshoej.br011.0.html |archive-url=https://web.archive.org/web/20110518173721/http://www.fortidsmindeguide.dk/Jelshoej.br011.0.html |url-status=dead |archive-date=18 May 2011 |title=Jelshøj – en storhøj fra bronzealderen |language=da |publisher=Danmarks Kulturarvs Forening (DAKUA) |access-date=15 October 2017}}</ref>

The hilly area around Aarhus consists of a [[moraine|morainal plateau]] from the last ice age, broken by a complex system of [[tunnel valley]]s. The most prominent valleys of this network are the Aarhus Valley in the south, stretching inland east–west with the Aarhus River, Brabrand Lake, Årslev Lake and Tåstrup Lake, and the [[Egå|Egå Valley]] to the north, with the stream of [[Egå]]en, [[Egå Engsø]], the bog of [[Geding-Kasted Mose]] and [[Geding Lake]]. Most parts of the two valleys have been drained and subsequently farmed, but in the early 2000s some of the drainage was removed and parts of the wetlands were restored for environmental reasons. The valley system also includes the stream of Lyngbygård Å in the west and valleys to the south of the city, following erosion channels from the [[quaternary|pre-quaternary]]. By contrast, the Aarhus River Valley and the Giber River Valley are late [[glacial meltwater valley]]s. The coastal cliffs along the Bay of Aarhus consist of shallow [[tertiary]] clay from the [[Eocene]] and [[Oligocene]] (57 to 24 million years ago).<ref>{{cite web|url=http://www.denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/Danmarks_kommuner/%C3%85rhus_Kommune|title=Aarhus Kommune|publisher=[[Gyldendal]]|access-date=19 July 2014|language=da|archive-date=2 May 2016|archive-url=https://web.archive.org/web/20160502021559/http://denstoredanske.dk/Danmarks_geografi_og_historie/Danmarks_geografi/Danmarks_kommuner/%c3%85rhus_Kommune|url-status=dead}}</ref><ref>{{cite web|url=http://extra.geus.info/web/nm-grundvand-brabrand-dalen.htm|title=Brabrand Dalen|date=13 January 2005|publisher=[[Aarhus County]]|access-date=9 April 2016|language=da}}</ref><ref>{{cite web|url=http://ntsnet.dk/sites/default/files/%C3%85rhus%20%C3%85dal.pdf|title=Aarhus Ådal|publisher=[[Danish Ministry of Education]]|access-date=9 April 2016|language=da|archive-url=https://web.archive.org/web/20160304000141/http://ntsnet.dk/sites/default/files/%C3%85rhus%20%C3%85dal.pdf|archive-date=4 March 2016|url-status=dead}}</ref><ref>{{cite web|url=http://gis.aarhus.dk/kommuneatlas/|title=Landskab og bebyggelse|publisher=[[Aarhus Municipality]]|access-date=9 April 2016|language=da|archive-url=https://archive.today/20130914192312/http://gis.aarhus.dk/kommuneatlas/|archive-date=14 September 2013|url-status=dead}}</ref>

===Climate===
{{climate chart
|[[Jutland|East Jutland]]
|−2.7|2.4|60
|−2.8|2.5|41
|−0.9|5.4|48
|1.2|10.5|42
|5.5|15.8|50
|9.2|18.9|55
|11.3|21.2|67
|11.1|20.8|65
|7.8|16.3|72
|5.0|11.8|77
|1.5|6.9|80
|−0.9|4.1|68
|float=right
|clear=none
|units=metric
|source=Dansk Meteorologisk Institut<ref name="DMI-climate"/>}}

Aarhus has a [[Oceanic climate#Marine west coast (Cfb)|temperate oceanic]] climate ([[Köppen climate classification|Köppen]]: ''Cfb'')<ref name="climate-data">{{cite web|url=http://en.climate-data.org/country/169/|title=Climate: Denmark, Aarhus|publisher=Climate Data|language=da|access-date=25 October 2016|archive-url=https://web.archive.org/web/20161026165109/http://en.climate-data.org/country/169/|archive-date=26 October 2016|url-status=live}}, Note:The Köppen World Map is rather course-scaled, and not very useful or precise on scales the size of Denmark.</ref> and the weather is constantly influenced by major weather systems from [[Points of the compass|all four ordinal directions]], resulting in unstable conditions throughout the year.<ref>{{cite web |url=https://www.dmi.dk/vejr/til-lands/maaned-og-saeson/vejrkorset-efteraarsvejrets-fire-hjoerner/ |title=Vejrkorset - efterårsvejrets fire hjørner |trans-title=The Weathercross - the four corners of autumn weather |publisher=[[Danish Meteorological Institute]] |language=da |first1=Michael|last1=Skelbæk|first2=Niels|last2=Hansen|date=16 September 2015 |access-date=14 February 2018 |archive-url=https://web.archive.org/web/20180215024207/https://www.dmi.dk/vejr/til-lands/maaned-og-saeson/vejrkorset-efteraarsvejrets-fire-hjoerner/ |archive-date=15 February 2018 |url-status=dead}}</ref> Temperature varies a great deal across the seasons with a mild spring in April and May, warmer summer months from June to August, frequently rainy and windy autumn months in October and September and cooler winter months, often with frost and occasional snow, from December to March. The city centre experiences the same climatic effects as other larger cities with higher wind speeds, more fog, less precipitation and higher temperatures than the surrounding, open land.<ref name="WeatherOnline">{{cite web |url=http://www.weatheronline.co.uk/reports/climate/Denmark.htm |title=Denmark |publisher=WeatherOnline |access-date=24 November 2014 |language=da}}</ref>

Western winds from the Atlantic and [[North Sea]] are dominant resulting in more precipitation in western Denmark. In addition, Jutland rises sufficiently in the centre to lift air to higher, colder altitudes contributing to increased precipitation in eastern Jutland. Combined, these factors make east and south Jutland comparatively wetter than other parts of the country.<ref name="DMI-climate"/> Average temperature over the year is {{convert|8.43|°C}} with February being the coldest month ({{convert|0.1|C|F|disp=or}}) and August the warmest ({{convert|15.9|C|F|disp=or}}). Temperatures in the sea can reach {{convert|17|-|22|C|F}} in June to August, but it is not uncommon for beaches to register {{convert|25|C|F}} locally.<ref name="WeatherOnline"/><ref>{{cite web |url=http://www.ditdanmark.com/article.95.html |title=The climate in Denmark |publisher=DitDanmark |access-date=9 January 2015 |url-status=dead |archive-url=https://web.archive.org/web/20160305212556/http://www.ditdanmark.com/article.95.html |archive-date=5 March 2016}}</ref>

The geography in the area affects the local climate of the city with the Aarhus Bay imposing a temperate effect on the low-lying valley floor where central Aarhus is located. [[Brabrand Lake]] to the west further contributes to this effect and as a result, the valley has a comparably mild, temperate climate. The sandy ground on the valley floor dries up quickly after winter and warms faster in the summer than the surrounding hills of moist-retaining [[boulder clay]]. These conditions affect crops and plants that often bloom 1–2 weeks earlier in the valley than on the northern and southern hillsides.<ref>{{cite web|url=http://www.denstoredanske.dk/index.php?title=Danmarks_geografi_og_historie/Danmarks_geografi/Danmarks_kommuner/%C3%85rhus_Kommune|title=Aarhus Kommune|publisher=[[Gyldendal]]|access-date=23 November 2014|language=da}}</ref>

Because of the northern latitude, the number of daylight hours varies considerably between summer and winter. On the summer solstice, the sun rises at 04:26 and sets at 21:58, providing 17 hours 32 minutes of daylight. On the winter solstice, it rises at 08:37 and sets at 15:39 with 7 hours and 2 minutes of daylight. The difference in length of days and nights between summer and winter solstices is 10 hours and 30 minutes.<ref>{{cite web|url=http://www.torbenhermansen.dk/almanak/almanak.php#|title=Sol op/ned |publisher=Almanak|access-date=17 November 2013|language=da}}</ref>

{{Weather box|width=auto
|collapsed=yes
|location=East Jutland (Tirstrup) (1961–1990)
|metric first=Yes
|single line=Yes
|Jan high C = 2.4
|Feb high C = 2.5
|Mar high C = 5.4
|Apr high C = 10.5
|May high C = 15.8
|Jun high C = 18.9
|Jul high C = 21.2
|Aug high C = 20.8
|Sep high C = 16.3
|Oct high C = 11.8
|Nov high C = 6.9
|Dec high C = 4.1
|year high C= 11.4
|Jan mean C=  0.2
|Feb mean C=  0.1
|Mar mean C=  2.3
|Apr mean C=  5.8
|May mean C= 10.8
|Jun mean C= 14.1
|Jul mean C= 16.2
|Aug mean C= 15.9
|Sep mean C= 12.1
|Oct mean C= 8.7
|Nov mean C= 4.4
|Dec mean C= 1.8
|Jan low C= -2.7
|Feb low C= −2.8
|Mar low C= -0.9
|Apr low C= 1.2
|May low C= 5.5
|Jun low C= 9.2
|Jul low C= 11.3
|Aug low C= 11.8
|Sep low C= 7.8
|Oct low C= 5.0
|Nov low C= 1.5
|Dec low C= -0.9
|year low C= 3.8
|precipitation colour = green
|Jan precipitation mm=60
|Feb precipitation mm=41
|Mar precipitation mm=48
|Apr precipitation mm=42
|May precipitation mm=50
|Jun precipitation mm=55
|Jul precipitation mm=67
|Aug precipitation mm=65
|Sep precipitation mm=72
|Oct precipitation mm=77
|Nov precipitation mm=80
|Dec precipitation mm=68
|year precipitation mm=722
|unit rain days=1mm
|Jan rain days=11
|Feb rain days=8
|Mar rain days=7
|Apr rain days=9
|May rain days=9
|Jun rain days=9
|Jul rain days=10
|Aug rain days=10
|Sep rain days=11
|Oct rain days=11
|Nov rain days=13
|Dec rain days=12
|Jan sun=41
|Feb sun=75
|Mar sun=141
|Apr sun=207
|May sun=254
|Jun sun=251
|Jul sun=243
|Aug sun=239
|Sep sun=165
|Oct sun=101
|Nov sun=65
|Dec sun=45
|year sun=1827
|source = {{cite web|url=https://www.dmi.dk/vejrarkiv/|title=Danish Meteorological Institute}}
}}