SELENE and Chang'E-1 laser altimeter data, which enables full coverage of measurements on the far side and the polar areas of the Moon, in contrast to previous lunar missions, provide the fundamental data source for deriving the lunar topography.
Evaluation of item difficulty: to guarantee sufficient coverage of the measurement range (i.e., measurement of low, moderate, or high levels of joint awareness), the reviewers estimated all item difficulties in three categories.
The adapted tool measured data quality in terms of sample representativeness, national coverage of data, measurement objectiveness and response rate (see Additional file 1).
Fig. 7 Coverage of the measurement.
Such descriptions contain both information about the data itself, such as content information, start and stop time or spatial coverage of the measurement, and information about entities.
All maritime applications face the same difficult operating environment: fading channels, rapidly changing environmental conditions, high noise levels at sensors, sparse coverage of the measurement area, limited reliability of communication channels, and the need for robustness and low energy consumption, just to name a few.
The use of CT permitted a total coverage of potential measurement points.
Regarding Fig. 2, we observe that increasing the detection coverage we increase both the total collected signal and the spatial coverage of the measurement Δ A. Since depth information is already provided by time, this should help in amending the ill-posed nature of the problem.
As more ship travel occurred, and more measurements were made, the coverage of temperature measurements across the globe increased.
From the resulting model temperature information may be extracted for different depths down to 5000 m below sea level, whereby the reliability and spatial coverage of the measurements decrease with depth due to the decreasing data density and increasing measuring uncertainties.
