Climate
and vegetation
Generally
speaking İstanbul's climate is temperate. Winters are usually
fairly mild and cold spells do not last very long. Snow does not lie
on the ground for more than three or four days. However, generally
speaking, these cold spells and snow are followed by southerly winds
which raise the temperature and melt the snow. Thus, considerable
problems are encountered in terms of municipal services. Throughout
history snowfall in Istanbul has been greeted as a kind of minor
disaster, for although the number of days when the temperature is
below zero and the ground is covered with snow is extremely limited,
there is a great deal of rain. The winter and spring are usually
rainy, but summers are hot and sunny. This fine weather
generally lasts from May until the end of November. It is said that
Autumn, regarded as İstanbul's loveliest season, sometimes lasts
until the end of December. Winter rears its head in January and
February and spring passes imperceptibly. It is because of all these
climatic features that İstanbul is visited by sun-seeking
foreigners most of all between April and October, and these two
months could be considered as the beginning and end of the tourist
rush. The heavy rain, although unlike the frequent torrential rain
of the Mediterranean region, is unpleasant and depressing. Two winds
provide air circulation in İstanbul. The north wind, or Poyraz,
which brings cool, clean air to the city and the famous Lodos,
a warm, sultry wind which changes snow to slush and often results in
violent storms at sea. It has been said throughout history that the
two natural elements that keep İstanbul clean are its currents
and its winds. Refuse is carried away by the currents and foul odours
by the winds. However, for a civilized city it is necessary to keep
the sea and the coast every bit as clean as the streets and the
Municipality will have to adopt a new approach in this respect.
The
vegetation of this city has evolved as a result of its temperate,
damp, sometimes rainy, and, in the summer months, extremely hot
weathep.The lush green lawns that used to adorn the picnic places and
beauty spots mentioned above are no more. Instead of these grassy
areas, which satisfied the city's need for green spaces, there are
parks and lawns within the city which are not a satisfactory
substitute because of the maintenance problems encountered during the
summer months. Throughout its history the city has possessed small
groups of trees between its buildings fhat provid cool, green oases.Small
squares and the courtyards of mosques are adorned in this way. It is
essential that these small groups of trees, which endow the city with
a special kind of beauty, should be preserved from the
point of view of its aesthetics. The city's most typical trees are
the cypress and the plane. Cypress trees, a typical feature of mosque
courtyards and graveyards, used to surround İstanbul like a dark
green belt.lt could now be said that most of the cypresses in front
of the Söğütlüçeşme station at Kadıköy have been
cut down. İstanbul has also lost most of its plane trees, many
of which are several hundred years old, but in spite of this, some of
these magnificent monuments of nature are still standing. The plane
trees at the top of Alemdar Hill and in the second-hand book market
in Bayezıt are examples. The orchards and vegetable gardens that
until recently were part of the İstanbul scene have decreased
considerably in consequence of the growing density of population and
the expansion of the city's residential areas. Today the city's fresh
fruit and vegetable requirements are met by products raised in
greenhouses in areas outside of the province.
Due to
the fact that lstanbul lies between two seas and on the channel that
links these two seas as well it boasts a rich variety of sea
products. The currents and fish migrations have made İstanbul a
fishing centre the like of which can be seen in very few places in
the world. The geographer Strabonos (born in Amasya circa 60 BC, died
circa 19 AD) states that the city earned a great deal of money from
the large hauls of tunny fish swarming in its waters. Even today
İstanbul preserves this characteristic, one to be found in very
few of the world's sea ports. The fishing boats of old which endowed
the coastline of İstanbul with such colour can no longer be seen
in the fishing grounds around the city's coasts. The traditions of
these fine, graceful craft that were so much a part of the lstanbul
scene need to be carefully nurtured. Apart from the different
varieties of Black Sea fish, a number of different varieties,
lobsters and shellfish are fished off the coast of Marmara, but many
of the latter are disappearing. However, archeological excavations of
the Byzantine strata have demonstrated that the people of lstanbul
consumed large amounts of shellfish such as mussels and oysters in
the past.
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