![]() To determine where the dew point and air temperature is close, you'll create an Arcade expression that changes the style. When there is a large difference between the dew point and air temperatures, the air is dry. If the dew point temperature is close to the air temperature, the air has a high relative humidity and may soon become saturated. Thus, the dew point temperature is a measure of how much moisture is in the air. The dew point temperature is the temperature to which the air would have to cool to become saturated. Your temperature data contains a field called Dew Point Temperature. Saturation can occur when hot air holding a lot of moisture cools suddenly. This condensation can lead to precipitation. The water vapor begins to condense into tiny water droplets to remove it from the air. When air holds the maximum amount of water vapor possible, it becomes saturated. The amount of water vapor that air can hold depends on its temperature (hotter air holds more). But there are more factors that influence rainfall, including heat and humidity. You've predicted precipitation based on existing rainfall, wind direction, and air pressure. Which areas may soon experience rainfall based on air pressure?.Are there any areas of high or low pressure where you wouldn't expect them to be?.Were there other areas of high or low pressure that you did not predict?.Navigate to the Contiguous United States bookmark and turn on the GOES Satellite Imagery Transparent layer. In the northern hemisphere, air tends to move counterclockwise around a low pressure system and clockwise around a high pressure system (this trend is reversed in the southern hemisphere).īased on your satellite imagery, precipitation, and wind speed layers, you'll predict where pressure is high and low. High pressure causes air to flow down and heat up. Low pressure causes air to rise, cool, and condense into rain clouds. Wind is not the only factor that influences precipitation. Overall, how likely would you say it is that your city receives rain?.Are there other winds that might cause the rainfall to avoid your city?.How long would it take rainfall to reach the city, given the wind speed and direction?.How far away is rainfall from the city you found?.It's possible the precipitation will pass south of the city altogether. Additionally, other stations in the area record either no wind, slower wind, or wind that is more easterly. At this rate, it would take over 10 hours for rain to reach the city. In the example image, a northeastern arrow with a wind speed of 17 kilometers per hour is about 180 kilometers away from Alexandria. In the table, for the Air Temperature (☏) field, click Options and click Information.In the Layers pane, for NOAA METAR Temperature layer, click Options and click Show table. Next, you'll calculate statistics to find out the range of temperatures around the world. How does the temperature where you live compare to the temperature in the surrounding area? Does the recorded temperature match the temperature you're currently experiencing? If not, what might have caused the difference?.What effect might oceans and large water bodies have on temperature? How do temperatures tend to differ between coastal and inland areas at the same latitude?. ![]() Are there any areas where altitude is causing temperatures that aren't explained by latitude or seasonal variation?.Name one area that will likely experience the same temperatures three months from now. Name two areas that will likely experience much different temperatures three months from now.Name two areas where latitude is the most likely explanation for observed temperature.Which areas have the most data? Which areas have the least?. ![]()
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