below the soil surface, the top of the zone of saturation is called vadose zone.
below the soil surface, the top of the zone of saturation is called vadose zone.
below the soil surface what is the top of the zone of saturation called?
vadose zone
the interception of precipitation from the atmosphere by the canopy is modeled using the rutter interception model. the land surface evaporation and vegetation transpiration are computed separately using the two source model of shuttleworth and gurney, which is based on the energy balance above canopy, within canopy and at soil surface. this model solves the non-linear equations based on the energy balance for the canopy, surface, and air temperatures at canopy height, evaporation from soil surface and transpiration from vegetation. a soil profile of three homogeneous layers (active, transmission and saturated layers) is used to model the soil moisture on the basis of water balance between layers. the active layer is 15–30 cm thick and it simulates the rapid changes of soil moisture content under high frequency atmospheric forcing. the transmission zone lies between the base of the active layer and the top of the capillary fringe and so it more characterizes the seasonal (instead of transient) changes of soil moisture. in modeling the unsaturated flow component of soil water, the water transport is assumed vertical and non-interactive between sub-basins. the lower boundary of the unsaturated zone is the top of capillary fringe controlled by the local average ground water table derived from the catchment average water table and topographic soil index which include the spatial variability of the topographic and soil parameters. starting with an observed value from the surrounding wells of the modeled basin, the temporal changes in the average ground water depth is based on the water balance analysis for the whole catchment, and the rate of change of the average ground water table is assumed to be the rate of change of local water table.
dphm-rs
by the middle of 1930, an unnumbered road was built from savannah to the northeastern part of tybee island. the oglethorpe–montezuma segment of sr 26 had a completed hard surface. three segments of the highway had a sand clay or top soil surface: the entire marion county portion of the cusseta–buena vista segment; a portion just west of the marion–schley county line; and from the candler–bulloch county line to statesboro. from graymont to the candler–bulloch county line, the highway was under construction. by the end of the year, from dublin to just west of the laurens–johnson county line, it had a completed hard surface. from graymont to the effingham–chatham county line, it had a sand clay or top soil surface. from just east of the emanuel–bulloch county line to statesboro, it was indicated to be under construction. also, the savannah–tybee island road was under construction. by the end of 1931, us 80's eastern terminus was truncated to blitchton. its old path on sr 26 was redesignated as part of us 280. three segments had a completed hard surface: from swainsboro to graymont; from statesboro to the approximate location of stilson; and from the bulloch–bryan county line to savannah, as well as the graymont to statesboro segment of us 80/sr 46 and the savannah–tybee island road. three segments were indicated to be under construction: a segment northeast of hawkinsville; a segment west-southwest of dublin; and from the approximate location of stilson to the bulloch–bryan county line. in january 1932, sr 26 was shifted north onto the graymont–statesboro segment of us 80. sr 46 was shifted onto the metter–statesboro segment. the statesboro–blitchton segment had a completed hard surface. in march, a portion west of hawkinsville was under construction. the next month, a portion northwest of buena vista had a sand clay or top soil surface. by the end of july, a portion of the highway northeast of hawkinsville also had this type of surface. in august, the emanuel county portion of the dublin–adrian segment was under construction. the next month, two segments were under construction: a portion east-northeast of ellaville and nearly the entire henderson–hawkinsville segment. in october, from the west end of the us 80 and sr 19 concurrencies to dublin, the highway had a completed hard surface. nearly the entire pulaski county portion of the henderson–hawkinsville segment had completed grading, but no surface course. a portion east-southeast of buena vista was under construction. by the end of april 1933, the entire johnson county portion had a completed hard surface. the schley county portion of the ellaville–oglethorpe segment had a sand clay or top soil surface. the marion county portion of the buena vista–ellaville segment had completed grading, but was not surfaced. two segments were indicated to be under construction: the houston county portion of the henderson–hawkinsville segment and a portion west-southwest of swainsboro. in may, a small portion east of the schley–macon county line was under construction. in september, the emanuel county portion of the dublin–swainsboro segment had completed grading, but was not surfaced. the next month, nearly the entire macon county portion of the ellaville–oglethorpe segment also had this type of treatment. in march 1934, the emanuel county portion of the dublin–swainsboro segment had a sand clay or top soil surface. a segment of the highway southeast of buena vista to west of ellaville was under construction. later that year, sr 26 was extended from savannah to tybee island. two segments had a completed hard surface: the marion county portion of the buena vista–ellaville segment and from east of adrian to swainsboro. the pulaski county portion of the henderson–hawkinsville segment had a sand clay or top soil surface. the portion of the highway from the johnson–emanuel county line to a point east of adrian was under construction. before the year ended, two segments had a completed hard surface: nearly the entire marion county portion of the cusseta–buena vista segment and the emanuel county portion of the dublin–swainsboro segment. also, the pulaski county portion of the henderson–hawkinsville segment had a completed semi hard surface. in the first quarter of 1935, nearly the entire chattahoochee county portion of the cusseta–buena vista segment had completed grading, but was not surfaced. by the middle of the year, nearly the entire pulaski county portion of the henderson–hawkinsville segment had a completed hard surface. a portion east of montezuma had completed grading, but was not surfaced. the central part of the macon county portion of the montezuma–henderson segment was under construction. by october, two segments were indicated to be under construction: the schley county portion of the ellaville–oglethorpe segment and a portion northeast of hawkinsville. by the end of the year, sr 26 was shifted to a more direct path between cusseta and buena vista. the eastern part of the former path was redesignated as an extended sr 103. from cusseta to the new sr 103 intersection had completed grading, but was not surfaced. the segment from ellaville to oglethorpe had a completed hard surface. late in 1936, two segments had a completed hard surface: from buena vista to ellaville and from henderson to hawkinsville. from cusseta to the sr 103 intersection, the highway had a sand clay or top soil surface. two segments were under construction: a portion northeast of cochran and a small portion in chatham county (east-southeast of the effingham–chatham county line). about a year later, nearly the entire macon county portion of the montezuma–henderson segment had a completed hard surface. by the end of the year, us 80 was extended from blitchton to tybee island. us 80/us 280/sr 26 was indicated to enter the western part of savannah on louisville road. us 280 ended at us 17/sr 25 (montgomery street). us 80/sr 26 turned right onto us 17/sr 25. they turned left onto 37th street, right onto bull street, and left onto victory street. by the middle of 1939, the bleckley county portion of the hawkinsville–cochran segment had completed grading, but was not surfaced.
georgia state route 26