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Geo-focused knowledge summary at junior secondary level
Geo-focused knowledge summary at junior secondary level
I. Temperature change
(1) day change
1 concept: one-day cycleTemperature changeI don't know。
2 characteristics of change: the highest temperature in one day is around 2 p. M. (14 p. M.) and the lowest temperature is around sunrise。
Poor 3 = maximum - minimum
(2) year change
1 concept: change in temperature over a one-year cycle。
2 characteristics of change: temperature changes in the north and south are the opposite。
On land: the northern hemisphere has the highest temperature in july and the lowest in january;
In the oceans, the northern hemisphere has the highest temperature in august and the lowest in february。
3 year poor = maximum average monthly temperature - minimum average monthly temperature
(3) temperature change curves are usually used to indicate temperature change within one year of a place。
(4) the methodology used for drawing annual temperature curves: one month, two degrees, three fixed points, four connections
2. Distribution of temperature
(1) temperature line: connecting at the same temperature。
(2) indicates that cold heat varies from one place to another in the world and is usually expressed in thermographs。
(3) impact factor: latitude position, land and sea position and topography
(4) distribution patterns:
Latitude differences: general low latitudes are high and high latitudes are low。
2 land-cum-sea differences: high summer land temperature and low sea temperature in the latitudes; the opposite of winter。
3 vertical changes: temperatures decrease by about 0. 6°c at approximately 100 m above sea level。
(5) interpretation of thermographs:
The temperature line 1 is closed, the centre is high and the centre is low。
The temperature varies widely where the temperature line is dense, and the temperature difference is small where the temperature line is thin。
(6) the world's “hot” sahara and the world's “cold” antarctica。
Ii. Distribution of precipitation and precipitation
1. Precipitation and life
(1) precipitation: rain, snow, hail etc. Landing from the atmosphere are collectively referred to as precipitation, of which rainfall is the main form of precipitation。
(2) measurement: the tool to measure precipitation is a rainfall unit, which indicates the size of precipitation in millimetres。
YeahHuman activitiesImpact: precipitation affects transportation, agricultural production, etc。
2. Seasonal changes in precipitation
(1) the seasonal variation of precipitation within one year of a place is usually expressed in monthly column maps of precipitation。
(2) method of drawing a column of precipitation: one month, two columns, three columns
(3) major precipitation type: converse rain, terrain rain, front-line rain。
3. Distribution of precipitation
(1) plumber line: connections to points of equal precipitation。
(2) indicates that precipitation is different around the world and is usually expressed as a scale of precipitation。
(3) impact factor: latitude position, land and sea position and topography
(4) distribution characteristics:
(a) the abundance of precipitation in the vicinity of the equator, with low precipitation in the polar regions;
(b) on both sides of the southern and northern routes of return, where rainfall is high on the eastern coast of the mainland and low on the west bank;
In temperate areas, there is more precipitation in coastal areas and less rainfall in the interior;
The four mountain slopes are characterized by a high level of precipitation and a low level of precipitation。
(5) the world's “raining extremes” of begging, and the world's “dry poles” of atacama。
Climate in the world
1. Regional differences in climate
(1) climate: a local, multi-year average weather condition, which generally varies little. For example, season xx is like spring。
(2) two elements of climate: temperature and precipitation。
(3) climate and weather differences:
(4) distribution of world climate
2. Main factors influencing climate
(1) distinction between climate and climate factors:
1 climate factor: refers to temperature and precipitation that make up the climate。
2 climate: latitude, topography, land and sea are factors that affect climate。
(2) impact of climate factors on temperature, precipitation
1-latitude factor: high temperatures at low latitudes and low temperatures at high latitudes; high precipitation in equatorial areas and low precipitation in polar regions。
2 land and sea factors: at the same latitude, the temperature is slightly higher in the summer and the sea is very high in the winter; rainfall is high in coastal areas and low in inland areas。
3 topographic factors: temperature at the same latitude is lower than below the mountain, with more precipitation on wind slopes and less precipitation on backwind slopes。
3. The relationship between climate and human activities
(1) impact of climate on human activities: it affects people in terms of food, clothing, shelter, mobility and agricultural production, and is abnormal and often harmful。
2) impact of human activities on climate: greenhouse effects of massive human emissions of carbon dioxide response
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Click below to select the document you want to download. The geo-gang template for the geo-massive testing of precipitation and drainage works in the context of climate change and extreme weather events in the context of climate change prevention and mitigation — some of the [thematically trained] integrated weather exercises on water cycle and water volume balance and lake profile — will be useful in june! (according to 80 points) a description of the master's master's master's and master's master's point of knowledge in the 7th grade is a description of how the seventh grade's first and second chapters of the seventh grade's master's point of knowledge can be read. Chapter 3 of the 7th grade book of the temperature problem analysis skills
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