#
Effect of Atmospheric propagation of Electromagnetic Wave on DInSAR Phase^{ †}

^{1}

^{2}

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## Abstract

**:**

## 1. Introduction

## 2. Effects of Atmospheric Propagation

^{3}s

^{-2}, f is the frequency of the L-band wave which is 1.276 GHz, ${\alpha}_{\mathrm{o}\mathrm{f}\mathrm{f}\mathrm{n}\mathrm{a}\mathrm{d}\mathrm{i}\mathrm{r}}$ is the Satellite Offnadir angle corresponding to 34.3° and Total Electron Content (TEC) is derived from the Global Ionospheric Map produced by Centre for Orbit Determination in Europe (CODE), as shown in Figure 2. In the figure, the red curve shows the mean TEC, a trend function is plotted in blue, and the black dots indicate the daily average mean TEC. The daily mean TEC for the months of Master, Slave 1, and Slave 2 image acquisitions are derived from this map.

## 3. DInSAR Generation from the Two Interferograms

## 4. Phase Correction

## 5. Results and Discussion

#### 5.1. Path Delay Occurred

#### 5.2. Correction on the Phase of DInSAR

#### 5.3. DInSAR Error Map

## 6. Conclusion

## Conflicts of Interest

## References

- Babu, A.; Kumar, S. SBAS interferometric analysis for volcanic eruption of Hawaii island. J. Volcanol. Geotherm. Res.
**2019**, 310, 31–50. [Google Scholar] - Casu, F.; Manzo, M.; Lanari, R. A quantitative assessment of the SBAS algorithm performance for surface deformation retrieval from DInSAR data. Remote Sens. Environ.
**2006**, 102, 195–210. [Google Scholar] - Gabriel, A.K.; Goldstein, R.M.; Zebker, H.A. Mapping small elevation changes over large areas: Differential radar interferometry. J. Geophys. Res. Solid Earth
**1989**, 94, 9183–9191. [Google Scholar] - Lanari, R.; Casu, F.; Manzo, M.; Zeni, G.; Berardino, P.; Manunta, N.; Pepe, A. An overview of the Small BAseline Subset algorithm: A DInSAR technique for surface deformation analysis. Pure Appl. Geophys.
**2007**, 164, 637–661. [Google Scholar] - Zhou, X.; Chang, N.-B.; Li, S. Applications of SAR Interferometry in Earth and Environmental Science Research. Sensors
**2009**, 9, 1876–1912. [Google Scholar] [CrossRef] [PubMed] - Gonnuru, P.; Kumar, S. PsInSAR based land subsidence estimation of Burgan oil field using TerraSAR-X data. Remote Sens. Appl. Soc. Env.
**2018**, 9, 17–25. [Google Scholar] [CrossRef] - Hanssen, R.; Frijt, A. A First Quantitative Evaluation of Atmospheric Effects on SAR Interferometry. In Proceedings of the Fringe 96 Workshop, Zurich, Switzerland, 30 September–2 October 1996; p. 277. [Google Scholar]
- Jehle, M.; Frey, O.; Small, D.; Meier, E.; Nüesch, D. Improved Knowledge of SAR Geometry through Atmospheric Modelling. University of Zurich. Available online: https://pdfs.semanticscholar.org/12c6/2eb9d8c30c4c04965c9cd14acc99100d418b.pdf (accessed on 14 September 2010).
- Zebker, H.A.; Rosen, P.; Goldstein, R.M.; Gabriel, A.; Werner, C.L. On the derivation of coseismic displacement fields using differential radar interferometry: The Landers earthquake. J. Geophys. Res. Solid Earth.
**1994**, 99, 19617–19634. [Google Scholar] [CrossRef]

**Figure 5.**Total path delay due to atmospheric propagation of electromagnetic wave on August 1, 2010.

**Figure 6.**Total path delay due to atmospheric propagation of electromagnetic wave on September 16, 2010.

**Figure 9.**Differential interferogram; (

**a**) before atmospheric correction; (

**b**) after atmospheric correction.

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**MDPI and ACS Style**

Balaji, P.M.; Kumar, S.
Effect of Atmospheric propagation of Electromagnetic Wave on DInSAR Phase. *Proceedings* **2019**, *18*, 5.
https://doi.org/10.3390/ECRS-3-06188

**AMA Style**

Balaji PM, Kumar S.
Effect of Atmospheric propagation of Electromagnetic Wave on DInSAR Phase. *Proceedings*. 2019; 18(1):5.
https://doi.org/10.3390/ECRS-3-06188

**Chicago/Turabian Style**

Balaji, Preethi Malur, and Shashi Kumar.
2019. "Effect of Atmospheric propagation of Electromagnetic Wave on DInSAR Phase" *Proceedings* 18, no. 1: 5.
https://doi.org/10.3390/ECRS-3-06188