=== versions === python 3.12.0 | rasterio 1.5.2 | numpy 2.5.4 | pandas 3.0.6 | matplotlib 3.11.2 | cmcrameri 1.10 === LiCSAR stack on 016A_02504_162118 === 6,427 interferograms online; 369 of <= 24 days between 20240201 and 20260730; 364 have unwrapped products (30 s to read or load) === small-baseline network === 364 pairs between 20240228 and 20260730 -> 112 epochs pairs by time span (days): 5: 2, 6: 74, 7: 3, 12: 104, 13: 2, 17: 1, 18: 74, 19: 3, 24: 101 design matrix (364, 111), rank 111 (needs 111: one connected network) epoch spacing: median 6 days, longest 24 days (20240615 to 20240709) === multilooked stack === 364 interferograms x 165 x 187 pixels (0.004 x 0.002 deg, about 196 m x 221 m) median coherence per pair: 0.49 (range 0.06-0.91); lowest 20250129_20250222 median coherence in Dec-Mar pairs 0.30 vs Jun-Sep pairs 0.59 (snow) reference: 4,879 land pixels > 15 km from SENG; plane removed from each pair === phase closure (unwrapping errors) === 471 closed triplets; |closure| > pi in 0.06% of valid pixel-triplets median closure magnitude 0.12 rad (0.5 mm) worst triplet 20250105-20250117-20250129: 10.1% of pixels have a 2*pi closure error worst triplet 20260301-20260307-20260325: 5.9% of pixels have a 2*pi closure error worst triplet 20250117-20250129-20250210: 4.3% of pixels have a 2*pi closure error pixels with closure errors in > 10% of their triplets: 0.2% of land === SBAS inversion === solved 15,577 of 15,892 land pixels (coherent in >= 50% of pairs); median 298 pairs per pixel residual RMS per pixel: median 0.5 mm, 95th percentile 1.1 mm pixels with a residual > pi in any pair: 1.1% far-field scatter of epoch-to-epoch changes (atmosphere + noise, robust std): median 2.7 mm, max 7.5 mm (20250330 to 20250405) === cumulative LOS change at SENG === inflation between eruptions 7 and 8 20241224-20250330: SENG +162 mm, 1st/99th percentile -26/+193 mm inflation after the 9th eruption 20250809-20260730: SENG +241 mm, 1st/99th percentile -42/+295 mm across the 1 April 2025 eruption 20250330-20250405: SENG -36 mm, 1st/99th percentile -125/+194 mm === GNSS: SENG relative to NYLA (Nevada Geodetic Laboratory, IGS20) === 823 common daily solutions; LOS unit vector at SENG: E -0.555 N -0.123 U +0.823 InSAR at SENG: 112 epochs; GNSS on 109 of them total LOS change 20240228-20260730: InSAR +1068 mm, GNSS +793 mm raw InSAR - GNSS: RMS 231 mm, max 279 mm; r = 0.990 co-eruptive steps (last epoch before -> first epoch after each eruption onset): 2024-03-16: InSAR -26 mm, GNSS -20 mm; 3 of 3 spanning pairs unwrapped and coherent at SENG 2024-05-29: InSAR +17 mm, GNSS +2 mm; 0 of 3 spanning pairs unwrapped and coherent at SENG 2024-08-22: InSAR +19 mm, GNSS -142 mm; 0 of 3 spanning pairs unwrapped and coherent at SENG 2024-11-20: InSAR -89 mm, GNSS -111 mm; 1 of 1 spanning pairs unwrapped and coherent at SENG 2025-04-01: InSAR -41 mm, GNSS -59 mm; 6 of 6 spanning pairs unwrapped and coherent at SENG 2025-07-16: InSAR -74 mm, GNSS -43 mm; 10 of 10 spanning pairs unwrapped and coherent at SENG === InSAR vs GNSS between eruptions === from to epochs InSAR_mm GNSS_mm InSAR_mm_per_yr GNSS_mm_per_yr 2024-03-23 2024-05-22 6 162.0 149.0 1027.0 938.0 2024-06-03 2024-08-14 6 181.0 182.0 972.0 957.0 2024-08-26 2024-11-18 8 186.0 188.0 876.0 862.0 2024-12-12 2025-03-30 8 195.0 176.0 663.0 603.0 2025-04-05 2025-07-10 17 194.0 180.0 694.0 646.0 2025-08-09 2026-07-30 58 258.0 236.0 238.0 217.0 103 epochs in 6 inflation phases: InSAR - GNSS RMS 11.5 mm, r = 0.998 summed inflation-phase LOS uplift: InSAR +1175 mm, GNSS +1110 mm (+6%) === SENG re-solved as one averaged pixel, with and without the shortest pairs === pairs >= 0 days: 355 pairs, rank 109/111; summed inflation InSAR +1148 vs GNSS +1110 mm (+3%); last phase +222 vs +217 mm/yr; RMS 4.9 mm pairs >= 12 days: 276 pairs, rank 109/111; summed inflation InSAR +1147 vs GNSS +1110 mm (+3%); last phase +222 vs +217 mm/yr; RMS 5.0 mm pairs >= 18 days: 172 pairs, rank 104/111; summed inflation InSAR +1193 vs GNSS +1110 mm (+7%); last phase +223 vs +217 mm/yr; RMS 12.5 mm === coherence across the 2024-05-29 eruption === before: 20240510_20240522 median coherence 0.34; across: 20240522_20240603 0.34 (zoom 13 x 13 km around Sundhnukur) pixels coherent before (> 0.5) but incoherent across the eruption (< 0.2): 6.4 km2 land pixels usable in < 50% of pairs: 2.0%; at SENG 90% figures and seng_insar_gnss_los.csv written to output/