Soil plant atmosphere continuum Soil plant atmosphere continuum The soil-plant-atmosphere continuum (SPAC) is the pathway for water moving from soil through plants to the atmosphere. Continuum in the description highlights the continuous nature of water connection through the pathway. The low water potential of the atmosphere, and relatively higher (i.e. less negative) water potential inside leaves, leads to a diffusion gradient across the stomatal pores of leaves, drawing water out of the leaves as vapour. As water vapour transpires out of the leaf, further water molecules evaporate off the surface of mesophyll cells to replace the lost molecules since water in the air inside
Remote sensing atmospheric boundary layer cells contain cloud filled regions in the center of the hexagon formation with cloud free regions on the edge of the hexagon. The closed cell has slow rising motion in the middle and faster descending motion at the edges. Closed cells tend to occur over warmer waters such as those associated with the Kuroshio Current and the Gulf Stream. Closed cellular patterns are generally formed under weak convective mixing in the lower levels with an inversion layer cap. They commonly occur in the eastern sections of subtropical high pressure regions or in the southeastern quadrant of polar highs. The CALIOP