Impact of cyclone Nilam on tropical lower atmospheric dynamics

Mitigation of Decorrelation and Atmospheric Noise in InSAR Time-series, with Application to Postseismic Deformation following the 2021 Haiti Earthquake

“…In fact, Tropical Depression Grace struck Haiti on August 16th, only two days after the earthquake, during which time some of the early Sentinel-1 acquisitions were made. NWP models, while valuable for capturing broader atmospheric trends and the stratified component of the tropospheric noise, usually fail to capture the details of localized atmospheric disturbances (Siddique et al, 2019;Hu et al, 2018;Liu et al, 2015;Kumar et al, 2016). In comparison, the common-date stacking and ICA methods we tested utilize redundant interferograms to determine the atmospheric delays for each date without requiring auxiliary data.…”

Retrieving characteristics of inertia gravity wave parameters with least uncertainties using the hodograph method

“…The timings of the flights were 05:30, 11:30, 17:30 and 23:30 LT. The accuracy of wind and temperature measurements is ±1 m s −1 and ±0.2 K, respectively (Vinay Kumar et al, 2016). There was one data gap at 11:30 LT on 4 May 2012, which was linearly interpolated to obtain continuous time series of wind velocities.…”