Round 1: Tossup 18

Changes in this quantity are associated with changes in radar reflectivity in a form of interferometry whose control variables are “persistent scatterers.” Measurements of this quantity standardized to the GTOPO30 (“G-topo-thirty”) system have since been improved by the ASTER instrument. Techniques like IfSAR (“IF-sar”) and InSAR (“IN-sar”) are used to obtain image representations of this quantity called DEMs (“D-E-M’s”). Temperature gradients relative to this quantity in dry and moist air parcels define the adiabatic (10[1])lapse rate. High values of latitude and this quantity form the “tree line” of a habitat. (-5[1])Constant (10[1])values of this quantity are represented (10[1])by contour lines (10[1])on topographic maps. For 10 points, what quantity is defined as zero at sea level? (10[1])■END■

Back to tossups

Buzzes

Summary