LABEX Program Summary
LABEX Program SummaryRaymond A. Arritt (Assoc. Prof.) and Moti Segal (Scientist); Iowa State University
Additional information on boundary layer profiler operation and data acquisition can be found in the following reference:
"Developments in UHF Lower Tropospheric Wind Profiling at NOAA's Aeronomy Lab", by D.A. Carter, K.S. Gage, W.L.Ecklund, W.M. Angevine, P.E. Johnston, A.C. Riddle, J. Wilson, and C.R. Williams, Radio Science, Vol. 30, #4, pp 997-1001, 1995.
The long dimension of the container was oriented in a north-south direction. The area around the site consisted mainly of sugar cane fields with trees far in the distance. The area immediately around the container included the railroad tracks, a large car park with a metal roof, a concrete loading dock/ramp for rail cargo, and several small farm implements.
The roof of the car park was about the same height as the top of the ISS clutter screen. The highest point on the cargo ramp was about five feet above the clutter screen. There was a power line extending to the north of the container, at a height of about 15 feet above the clutter screen.
The surface meteorological tower was positioned 75 feet to the south-southeast of the container. The pressure sensor was placed at five feet above the ground. The temperature/humidity sensor was at seven feet. The propeller/vane anemometer was placed at 29 feet above the ground. The rain gauge was placed between the container and the tower at a height of three feet.
The near bank of the river, about 300 feet east of the site, was lined with brush and small trees. The highest areas of this vegetation were below the level of the ISS. There were trees on the far side of the river, 700 feet away, which were above the level of the ISS. The side of the container opposite the river was pasture, filled with lots of scrub brush. The height of that brush was below the level of the ISS.
The surface meteorological tower was located to the southeast of the ISS container, 33 feet from the road that runs down the dike. The base of the tower was three feet below the top of the dike. The pressure sensor was located at six feet above the ground as was the solar radiation sensor. The temperature/humidity sensor and the net-radiation sensor were positioned at nine feet above the base of the tower. The propeller/vane anemometer was placed on the tower at 29 feet above the ground. The rain gauge was placed about 20 feet from the tower at the same elevation.
The four RASS speakers were placed outside the four corners of the container. The telemetry antenna tower (15 feet tall) was placed to the east of the container. The generator was placed to the south of the container where the operators would park their cars.
ISS4 was set up near the town of Pahokee, Florida, located just off the southeast shore of Lake Okeechobee. The Pahokee ISS site was located in the middle of a cane field plantation on a workers homestead. The site was approximately 4.2 miles from the edge of Lake Okeechobee, just a block off of Amons road. Roads went in all cardinal compass directions from the site. A power line followed one of the roads east from the site. The entire area was covered with sugar cane fields. Traffic on the roads was sparse.
The long axis of the container was positioned along the direction 225 degrees. The house was approximately 14 feet from the nearest corner of the container. The house was one story tall with a peaked roof that extended slightly above the ISS clutter screen. There were five trees in the immediate area which extended a few feet above the clutter screen. Each of the RASS speakers were within five to nine feet of each corner of the ISS container.
The surface meteorological tower was placed 63 feet to the southwest of the container. The pressure sensor was mounted at three feet above the ground. The temperature/humidity and radiation sensors were mounted at six feet, the radiation sensors pointing to the south. The propeller/vane anemometer was placed at 28 feet above the ground. The rain gauge was located to the southeast of the container, two feet above the surface. The 15-foot CLASS telemetry antenna tower was placed 63 feet to the south.