When scientists believe in the global warming/climate change hoax, their impartiality is seriously affected! Also called confirmation bias!
"But satellite radar, a popular tool for identifying fast-sinking, vulnerable shorelines, may be leading scientists astray, according to a comparison of two influential studies of subsidence along the U.S. Gulf Coast. The studies reached strikingly different conclusions about which areas are sinking, according to the analysis, published today in Earth Observation. ..."
From the abstract:
"Interferometric Synthetic Aperture Radar (InSAR) is widely used to monitor surface-elevation change in subsiding coastal regions, but inconsistencies between studies hinder understanding of the processes driving vertical land motion (VLM). Here we compare two recent InSAR datasets from the central U.S. Gulf Coast which yield similar mean rates (−2.8 ± 2.8 and −3.3 ± 1.8 mm yr−1) but show negligible spatial correlation (R2=0.05), except in medium to highly developed urban areas (R2>0.5). Using 41 Global Navigation Satellite System records from adjacent Pleistocene uplands with minimal shallow subsidence and sediment accretion, we find a median VLM of −1.2 mm yr−1, largely driven by glacial isostatic adjustment that is higher than previously believed. InSAR data exhibit larger uncertainties and are presently unable to capture this rate.
Given the struggles of InSAR in vegetated landscapes, we recommend that vertical velocities below 5 mm yr−1 are interpreted with utmost caution."
Evaluating InSAR-derived rates of surface-elevation change along the central U.S. Gulf Coast (open access)
Figure 1Maps of InSAR-derived surface-elevation change (SEC) rates and corresponding frequency histograms.
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