## 2 SAR Data and SAR Data Archives
For instance, the ALOS2 coherence was lower in areas affected by the July and September 2018 lava flows compared to the areas covered by the early and late April 2018 eruptive products (Figure 4e). Figure 3: _Cont._  
Figure 3: Overview of the complete SAR data archive holding a total of 1835 SAR scenes (represented as black dots) acquired over Piton de la Fourmaise between 5 September 1998 and 31 December 2019: **(a)** data collected by “old generation” SAR satellites that are no longer operating; **(b)** data collected by “new generation” SAR satellites. A total of 58 eruptions are marked by red bars, while 24 intrusions are shown as green lines. \begin{table}
\begin{tabular}{l c c c c c c c c c c c c c} \hline \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline
**Satellite \({}^{\bullet}\)** & **Band** & \begin{tabular}{c} **Acq.** \\ **Mode \({}^{\bullet}\)** \\ \end{tabular} & **Pol.** & \begin{tabular}{c} **Resolution** \\ **R/A \({}^{\circ}\) (fm)** \\ \end{tabular} & \begin{tabular}{c} **Image Size** \\ **R \(\times\) A \({}^{\circ}\) (km)** \\ \end{tabular} & \begin{tabular}{c} **Scene Center** \\ **Coordinate** \\ \end{tabular} & \begin{tabular}{c} **Swath/Track** \\ **/Bam \({}^{\circ}\)** \\ \end{tabular} & **Pass LD \({}^{\circ}\)** & \begin{tabular}{c} **Look** \\ **Angle (\(\uparrow\))\({}^{\circ}\)** \\ \end{tabular} & \begin{tabular}{c} **First Image Date** \\ **\({}^{\circ}\)** \\ \end{tabular} & \
\begin{tabular}{c} **Last Image Date** \\ **Angle (\(\uparrow\))\({}^{\circ}\)** \\ \end{tabular} &
\begin{tabular}{c} **No.** \\ **yyyy/mm/dd** \\ \end{tabular} & **Scenes** \\ \hline ENVSTAT & C & SM & VV & 7.803.18 & 39.9 \(\times\) 109.9 & 21.25\({}^{\circ}\)S & IS3 091 & DR & 27.1 & 20030/818 & 2010/902 & 44 \\ \hline ENVSTAT & C & SM & VV & 7.803.18 & 40.0 \(\times\) 108.1 & 21.15\({}^{\circ}\)S & IS3 356 & AR & 30.3 & 20030/801 & 2010/903 & 42 \\ \hline ENVSTAT & C & SM & VV & 7.804.06 & 40.5 \(\times\) 109.2 & 21.05\({}^{\circ}\)S & IS2 313 & AR & 20.2 & 20030/415 & 2010/908 & 49 \\ \hline ENVSTAT & C & SM & VV & 7.804.06 & 40.5 \(\times\) 98.3 & 21.23\({}^{\circ}\)S & IS2 084 & AR & 25.4 & 20030/817 & 2010/09/19 & 33 \\ \hline ENVSTAT & C & SM & VV & 7.804.06 & 40.5 \(\times\) 109.6 & 55.28\({}^{\circ}\)E & IS2 363 & DR & 21.9 & 20030/802 & 2010/0904 & 53 \\ \hline RSAT1 & C & SM & HH & 4.63\(\times\)51.7 & 27.7 \(\times\) 58.3 & 21.18\({}^{\circ}\)S & FS & DR & 47.5 & 2000/0905 & 2002/03/11 & 4 \\ \hline RSAT1 & C & SM & HH & 4.63\(\times\)50.5 & 26.3 \(\times\) 59.4 & 21.19\({}^{\circ}\)S & F4 & AR & 46.1 & 2000/0927 & 2002/04/26 & 8 \\ \hline RSAT1 & C & SM & HH & 4.63\(\times\)50.5 & 27.8 \(\times\) 60.9 & 21.19\({}^{\circ}\)S & F2 & AR & 40.9 & 2001/11/16 & 2002/04/09 & 2 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 23.4 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & DR & 69.2 & 20150/04 & 2019/10/20 & 11 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 22.6 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & DR & 64.8 & 2014/12/12 & 2019/10/11 & 9 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 21.5 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & 57 & DR & 59.3 & 2017/07/12 & 2019/10/16 & 16 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 19.8 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & 58 & DR & 52.4 & 2014/102/7 & 2019/12/31 & 13 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 17.2 \(\times\) 26.3 & 21.25\({}^{\circ}\)S & FS & 59 & DR & 43.5 & 2014/12/13 & 2019/10/12 & 8 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 13.2 \(\times\) 26.3 & 21.25\({}^{\circ}\)S & FS & 60 & DR & 31.8 & 20150/101 & 2019/10/17 & 8 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 13.1 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & 64 & DL & 31.7 & 2014/08/20 & 2019/07/31 & 11 \\ \hline ALOS2 & L & SPT & HH & 1.43\(\times\)0.97 & 17.2 \(\times\) 26.2 & 21.25\({}^{\circ}\)S & FS & 65 & DL & 43.3 & 2019/07/08 & 2019/08/05 & 2 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: _Cont._