Chapter 265: Altitude Climate Response

Angel fell into the carriage of the eldest grandson Yuanhong, she didn't have any good feelings for the eldest lady of the Yan family, something went wrong along the way, and she still needed to clean up the aftermath, she was really depressed.

The eldest grandson Yuanhong held Angel's little hand and said with a little apology, "I have wronged you, when I return to the palace in the future, don't rush to canonize her, just dispose of it casually." ”

The original intention of the eldest grandson Yuanhong was not to give Yan Ya any title, although Angel had the right to canonize the woman under the throne, the eldest grandson Yuanhong didn't want to wronged Angel, so he let Yan Ya be a lady in the harem, and the province was always annoying in front of Angel.

Angel smiled calmly, but she didn't say anything, Yan Ya didn't put it in her eyes, whether she canonized it or not, it had no impact on this queen, there were a lot of women in the harem, and if Yan Ya was not pleasing to the eye in the future, it would definitely spring up like mushrooms after a rain.

Traveling far away, there will always be a situation where there is no store in front of the village, and the eldest grandson Yuanhong and his party can only set up a tent in the field as a temporary resting place.

Along the way, Yan Ya always tried her best to get close to Changsun Yuanhong, but was slapped hard by Changsun Yuanhong, and Yan Tuya was unfortunately locked up in the last carriage of the brigade by Changsun Yuanhong, and sent two grandmothers to watch each other.

Yan Ya was embarrassed, in the face of the gloating of Rong Xiuyi and Wei Guifei, Yan Yaqi's head was dizzy, and she unpacked her bags and continued to bribe the two grandmothers around her, the two of them were recruited, but they refused to let go at all, even the identity of the eldest grandson Yuanhong and his party did not inquire.

It was cold in the mountains, and before it was autumn, they had to wrap themselves in autumn clothes, and I heard that it was colder in the north, and the sputum could form ice, and I didn't know how the Tatars lived, and the sound of wolves howling all around made people's hearts numb.

"Is it cold?" The eldest grandson Yuanhong sat by the fire, close to Angel's smaller body, the cold in the mountain caught everyone off guard, and the eldest grandson Yuanhong was worried that Angel'er's body could not stand it.

Angel shook her head and gave the eldest grandson Yuanhong a comforting smile, "It's okay, I heard that the farther you go north, the more difficult the life will be, wearing a fur jacket early in the morning, and at noon I can't wait to be shirtless, when it snows, a mouthful of phlegm can form ice, if you don't adapt to the people there, there will be the sound of mosquitoes in your ears." ”

Atmospheric pressure decreases exponentially with increasing altitude. Under clear sky conditions, the direct solar radiation intensity during the day and the effective radiation intensity at night in the alpine without snow cover increase with altitude. Due to the different slope directions, the sunny slope and the shady slope receive different solar radiation, which affects the distribution of air temperature and airflow.

The temperature decreases with altitude. In general, the vertical decline rate of temperature is the largest in summer and the lowest in winter. The influence of the direction and slope direction of the mountain range on the air temperature is mainly manifested in the difference of air temperature between the two sides of the mountain range and leads to different climatic phenomena. The temperature on the sunny slope is high and varies greatly, while the temperature on the shady slope is low and the change is small.

The diurnal and annual temperature ranges on the summits and slopes are relatively small, and the autumn temperature is higher than the spring temperature, and the diurnal and annual temperature ranges in the valleys and intermountain basins are relatively large, and the spring temperature is higher than the autumn temperature.

The amount of precipitation and the number of days of precipitation increase with the altitude of the mountain. In mountainous areas above a certain altitude, precipitation decreases with altitude due to the decrease in water vapor content in the air flow.

The height at which the precipitation reaches its maximum is called the maximum precipitation altitude. The influence of slope aspect on rainfall is shown in the table that the rainfall on the windward slope is more than that on the leeward slope. Especially on both sides of the tall mountain ranges, the large difference in rainfall causes great changes in the vegetation landscape.

Wind speed increases with mountain elevation. Wind speeds are high at mountain tops, ridges, and canyon outlets, and low at basins, valley floors, and leewards. The wind speed in the high mountains is generally high at night, light during the day, and the lowest in the afternoon, while the opposite is true in the foothills and valleys. Mountains can also produce some local circulation, such as valley winds, bula winds, foehn winds, slope winds, glacial winds, etc.

In terms of humidity (water vapor pressure and relative humidity), water vapor pressure decreases with increasing altitude. In most cases, the upper part of the mountain is higher than the lower part due to low temperature and more clouds, but the opposite is also true in the high mountainous area in winter, where the summit has fewer clouds and fog and less relative humidity in winter.

The air pressure varies with altitude, and the partial pressure of the various gases that make up the atmosphere also varies with altitude, i.e., decreases with altitude. The same goes for the partial pressure of oxygen. Atmospheric pressure decreases in the plateau area. When the oxygen saturation is reduced to a certain extent, it can cause insufficient oxygen supply to various organs and tissues, resulting in functional or organic changes, and then hypoxia symptoms, such as headache, dizziness, memory loss, palpitation, shortness of breath, cyanosis, nausea, vomiting, decreased appetite, abdominal distension, fatigue, insomnia, blood pressure changes, etc.

The temperature gradually decreases with the increase of altitude, generally for every 1000 meters, the temperature drops by about 1°C, and in some areas even drops by 1°C for every 150 meters. The air in most areas of the plateau is thin, dry and cloudless, the ground receives a large amount of solar radiation energy during the day, and the temperature near the ground rises rapidly, and at night, the ground heat dissipates extremely quickly, and the ground temperature drops sharply. Therefore, the difference between the highest temperature and the lowest temperature in a day on the plateau is very large, sometimes within a day, after experiencing cold and heat, the scorching sun is in the sky during the day, sometimes the temperature is as high as 20~30 °C, and the temperature at night and early in the morning can sometimes drop below 0 °C, which is also a major feature of the plateau climate. Because the atmospheric pressure of the plateau is low, the water vapor pressure is also low, and the moisture in the air decreases with the increase of altitude, so the higher the altitude, the drier the climate.

The wind speed on the plateau is high, and the water loss on the body surface is significantly higher than that on the plain, especially during labor or strenuous activities, the breathing deepens and accelerates, and the sweating water is dispersed. At the same time, due to the influence of diuretic factors such as hypoxia and cold on the plateau, the water content of the body is reduced, resulting in abnormal dryness of the mucous membrane of the respiratory tract and the skin of the whole body, and the defense ability is reduced, and pharyngitis, dry cough, nosebleeds and chapped hands and feet are prone to occur.

The air in the plateau is thin and clean, the content of dust and water vapor is less, the atmospheric transparency is higher than that of the plain, the solar radiation transmittance increases with the increase of altitude, the influence of strong ultraviolet rays and solar radiation is mainly the exposed skin and eyes are prone to damage, and the skin damage is sunburn, edema, pigmentation, skin thickening and wrinkle formation.

The strong ultraviolet radiation in the sunlight in the plateau area is easy to cause acute damage to the eyes, mainly causing acute keratitis, cataract, visual impairment and snow blindness.