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Modern Geomatics Technologies and Applications

Table 2.Characteristics of Real and hypothetical of Maule faults
STRIKE DEPTH DIP LENGTH WIDTH RAKE SLIP
Maule 19 35 15 429 145 90 8.1
hypothetical 90 35 15 429 145 90 8.1
of Maule

If the first row of the table 2Wang et al. (2012b)is used, the results will be in real mode and for the
second row; the results will be hypothesis mode.

4. Results

As already mentioned, in this paper five scenarios are used including GRACE, GRACE-FO,
Cartwheel, Pendulum, and Helix. Our analyses showed the range-rate part. In this section, the results of
two modes were shown. Both of them are calculated for Maule-like fault and at the same position. One is
real strike angle of 19 degrees and the other is hypothesis angle of 90 degrees. All five charts are drawn in
the following figures. The Figure 3 showed the range-rate changes with real strike angle of 19 degrees.
The range-rate changes at different scenarios in a zoom manner are shown in Figure 4. The reason for
zooming is to have a closer look at the changing of signals occurred due to an earthquake. For a better
result, the hypothetical of Maule is shown in Figure 5.
In Figure 3 the GRACE and GRACE-FO mission observations have only along-track signals and as it
can be seen in the results the signals are between [-2.5, 3]⁡× 10 . The Cartwheel mission observations
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include both along-track and cross-track. In this scenario, the signals are between [-3, 2]⁡× 10 . The
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pendulum mission observations have both along-track and radial-track. The pendulum mission’s signals
are between [-7, 6]⁡× 10 −4 . The observations in a Helix mission are the combination of all three
components including along-track, cross-track and radial. In this article, the Helix scenario’s signals are
between [-2.5, 3]⁡× 10 .
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