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Maine agriculture is impacted by the changing climate that includes more hot days, droughts, increased flooding, and longer growing season. Some crops and farms could benefit from a longer growing season and more carbon dioxide in the air that increases plant growth. The rising temperatures are affecting the maple sugar season. [1]
Maine, Vermont, New Hampshire, and most of interior western Massachusetts have a humid continental climate (Dfb under the Köppen climate classification). In this region, the winters are long, cold, and heavy snow is common, courtesy of both coastal and continental low pressure systems. Most locations in this region receive between 60 and 120 ...
Warm air has a lower density than cool air, so warm air rises within cooler air, [8] [better source needed] similar to hot air balloons. [citation needed] Clouds form as relatively warmer air carrying moisture rises within cooler air. As the moist air rises, it cools causing some of the water vapor in the rising packet of air to condense. [9]
During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed. During the night the slopes get cooled and the dense air descends into the valley as the mountain wind. [4] These breezes occur mostly during calm and clear ...
The warm air overrides the cooler air and moves upward. Warm fronts are followed by extended periods of light rain and drizzle due to the fact that, after the warm air rises above the cooler air (which remains on the ground), it gradually cools due to the air's expansion while being lifted, which forms clouds and leads to precipitation.
The hot, rising air would then escape through windows near the ceiling to create a natural airflow. Architects also incorporated front porches onto houses to give homeowners some relief from the heat.
In dry air, the adiabatic lapse rate (i.e., decrease in temperature of a parcel of air that rises in the atmosphere without exchanging energy with surrounding air) is 9.8 °C/km (5.4 °F per 1,000 ft). The saturated adiabatic lapse rate (SALR), or moist adiabatic lapse rate (MALR), is the decrease in temperature of a parcel of water-saturated ...
Tropical and equatorial air masses are hot as they develop over lower latitudes. Tropical air masses have lower pressure because hot air rises and cold air sinks. Those that develop over land (continental) are drier and hotter than those that develop over oceans, and travel poleward on the southern periphery of the subtropical ridge. [5]