🗊 Презентация Lake ice climatology

Категория: Физика
Нажмите для полного просмотра!
Lake ice climatology, слайд №1 Lake ice climatology, слайд №2 Lake ice climatology, слайд №3 Lake ice climatology, слайд №4 Lake ice climatology, слайд №5 Lake ice climatology, слайд №6 Lake ice climatology, слайд №7 Lake ice climatology, слайд №8 Lake ice climatology, слайд №9 Lake ice climatology, слайд №10 Lake ice climatology, слайд №11 Lake ice climatology, слайд №12 Lake ice climatology, слайд №13 Lake ice climatology, слайд №14 Lake ice climatology, слайд №15 Lake ice climatology, слайд №16 Lake ice climatology, слайд №17 Lake ice climatology, слайд №18 Lake ice climatology, слайд №19 Lake ice climatology, слайд №20 Lake ice climatology, слайд №21 Lake ice climatology, слайд №22
Скачать
Вы можете ознакомиться и скачать презентацию на тему Lake ice climatology. Доклад-сообщение содержит 22 слайдов. Презентации для любого класса можно скачать бесплатно. Если материал и наш сайт презентаций Mypresentation Вам понравились – поделитесь им с друзьями с помощью социальных кнопок и добавьте в закладки в своем браузере.

Слайды и текст этой презентации

Слайд 1


Lake ice climatology, слайд №1
Описание слайда:

Слайд 2


Lake ice season
Описание слайда:
Lake ice season

Слайд 3


Warming climate  ? Will the lake freeze in future ? How much are freezing date and break-up date affected ? How much is ice thickness affected ? And...
Описание слайда:
Warming climate  ? Will the lake freeze in future ? How much are freezing date and break-up date affected ? How much is ice thickness affected ? And ice quality? Ice cover stability ? Ice coverage ?

Слайд 4


Ice phenology Freezing date Strongly connected to air temperature (long-wave radiation, turbulent fluxes) Connection depends on lake depth Freezing...
Описание слайда:
Ice phenology Freezing date Strongly connected to air temperature (long-wave radiation, turbulent fluxes) Connection depends on lake depth Freezing after 0oC downcrossing Air temperature falling rate major factor

Слайд 5


Freezing and breakup
Описание слайда:
Freezing and breakup

Слайд 6


Lake ice time series Ice phenology freezing date breakup date How to define? Ice cover properties Ice thickness – max annual value Ice concentration...
Описание слайда:
Lake ice time series Ice phenology freezing date breakup date How to define? Ice cover properties Ice thickness – max annual value Ice concentration (large lakes)

Слайд 7


Lake Kallavesi, Finland 1830 – 2014
Описание слайда:
Lake Kallavesi, Finland 1830 – 2014

Слайд 8


Lake ice climatology, слайд №8
Описание слайда:

Слайд 9


Lake ice climatology, слайд №9
Описание слайда:

Слайд 10


Lake ice climatology, слайд №10
Описание слайда:

Слайд 11


Lake ice climatology, слайд №11
Описание слайда:

Слайд 12


1st order: climate change impact Freezing date ~ 5 day/°C Ice thickness 5–10 cm/°C Breakup date ~ n days after zero upcrossing of heating
Описание слайда:
1st order: climate change impact Freezing date ~ 5 day/°C Ice thickness 5–10 cm/°C Breakup date ~ n days after zero upcrossing of heating

Слайд 13


Lake Vanajavesi: model for climate change impact
Описание слайда:
Lake Vanajavesi: model for climate change impact

Слайд 14


Ice thickness cycle – albedo sensitivity, Prydz Bay
Описание слайда:
Ice thickness cycle – albedo sensitivity, Prydz Bay

Слайд 15


Lake Ladoga: Finnish – Soviet – Russian data
Описание слайда:
Lake Ladoga: Finnish – Soviet – Russian data

Слайд 16


Ice concentration A A = relative area of ice in the lake Freezing  depth: t = F(h) Hypsographic curve = G(h) Formally: A(t) = G[F-1(t)/max(h)
Описание слайда:
Ice concentration A A = relative area of ice in the lake Freezing  depth: t = F(h) Hypsographic curve = G(h) Formally: A(t) = G[F-1(t)/max(h)

Слайд 17


Lake ice climatology, слайд №17
Описание слайда:

Слайд 18


Lake ice climatology, слайд №18
Описание слайда:

Слайд 19


Summary: warming (?)  Freezing day delays Max annual ice thickness likely decreases Ice quality (congelation ice/snow ice) ? Period of stable ice...
Описание слайда:
Summary: warming (?)  Freezing day delays Max annual ice thickness likely decreases Ice quality (congelation ice/snow ice) ? Period of stable ice cover shortens Transient open water periods in smaller lakes than presently Ice breakup date likely earlier

Слайд 20


… consequences to water body Shorter ice season AND More sunlight More transient open water periods Improved oxygen level How winter ecology will be...
Описание слайда:
… consequences to water body Shorter ice season AND More sunlight More transient open water periods Improved oxygen level How winter ecology will be adapted?

Слайд 21


Climate warming  Lake seasons
Описание слайда:
Climate warming  Lake seasons

Слайд 22


Lake ice and society: climate change impact Lake ecology (+/- ?) Traffic on-ice Recreation: sport, fishing ice-water bathing Local weather changes...
Описание слайда:
Lake ice and society: climate change impact Lake ecology (+/- ?) Traffic on-ice Recreation: sport, fishing ice-water bathing Local weather changes warmer surfaces Open areas may persist  moisture fluxes, frazil ice Snow is main question!

Скачать

Теги Lake climatology
Похожие презентации
Mypresentation.ru
Загрузить презентацию