# Millenium eruption ## Simulations with gravity current ON | ID | Meteo data | Column height | | -------- | ----------------------- | ----- | | ->**plinian-w1**<- | 1996-11-29 / 1996-12-04 | 30 km | | plinian-w2 | 1980-01-30 / 1980-02-04 | 44 km | | coign-w1 | 1976-06-08 / 1976-06-13 | 50 km | | coign-w2 | 1962-10-23 / 1962-10-28 | 20 km | ## Datasets <details> <summary>plinian-ds</summary> ```csvpreview {header="true"} label,latitude,longitude,thickness P1,35.583,135.883,0.0009666666667 P2,42.283,126.600,0.000004141176471 P3,42.306,126.283,0.0001 P4,40.530,132.200,0.033 P5,41.350,134.530,0.1088 P6,41.940,138.720,0.0174 P7,41.650,140.010,0.0284 P8,45.007,145.001,0.000009381818182 P9,43.650,142.850,0.007333333333 P10,43.067,141.350,0.0008 P11,42.637,141.603,0.008571428571 P12,42.633,140.307,0.02702702703 P13,44.351,146.256,0.01 P14,43.078,145.101,0.01 P15,40.783,141.317,0.007692307692 P16,39.955,139.739,0.0009714285714 ``` </details> <details> <summary>coign-ds</summary> ```csvpreview {header="true"} label,latitude,longitude,thickness P1,35.583,135.883,0.00003333333333 P2,42.283,126.600,0.00002145882353 P4,40.530,132.200,0.017 P5,41.350,134.530,0.0512 P6,41.940,138.720,0.0126 P7,41.650,140.010,0.0116 P8,45.007,145.001,0.000005018181818 P9,43.650,142.850,0.002666666667 P10,43.067,141.350,0.0002 P11,42.637,141.603,0.001428571429 P12,42.633,140.307,0.02297297297 P15,40.783,141.317,0.01230769231 P16,39.955,139.739,0.001028571429 ``` </details> <details> <summary>all-ds</summary> ```csvpreview {header="true"} label,latitude,longitude,thickness,load P01,42.000,130.283,0.09,90 P02,41.333,130.417,0.1,100 P03,40.283,132.217,0.05,50 P04,40.867,132.650,0.04,40 P05,40.767,133.200,0.09,90 P06,41.350,134.435,0.16,160 P07,40.017,136.398,0.1,100 P08,40.745,136.938,0.001,1 P09,41.005,137.018,0.08,80 P10,41.873,137.657,0.11,110 P11,41.147,138.002,0.09,90 P12,41.423,138.260,0.074,74 P13,40.750,138.450,0.02,20 P14,40.952,138.667,0.11,110 P15,41.998,138.668,0.03,30 P16,40.898,139.015,0.06,60 P17,41.833,139.163,0.032,32 P18,40.895,142.278,0.002,2 P19,40.678,142.783,0.002,2 P20,42.633,141.567,0.02,20 P21,42.767,141.600,0.01,10 P22,42.466,140.550,0.01,10 P23,42.183,140.667,0.04,40 P24,41.883,141.083,0.05,50 P25,41.516,140.000,0.04,40 P26,40.300,141.333,0.05,50 P27,40.483,140.483,0.04,40 P28,46.710,151.660,0.015,15 P29,42.996,131.847,0.03,30 P30,43.393,132.795,0.02,20 P31,43.504,133.382,0.015,15 P32,43.522,134.144,0.01,10 P33,35.583,153.883,0.001,1 P34,43.078,145.101,0.01,10 P35,45.007,145.001,0.0000144,0.0144 P36,42.283,126.600,0.0000256,0.0256 P37,39.955,139.739,0.002,2 P38,42.633,140.307,0.01,10 P39,42.082,140.688,0.05,50 P40,41.998,128.539,0.72,720 P41,42.011,128.423,0.9,900 P42,42.033,128.421,0.5,500 P43,42.074,128.416,0.5,500 P44,42.113,128.376,0.2,200 P45,41.630,140.427,0.03,30 P46,41.781,141.100,0.04,40 P47,41.838,141.139,0.04,40 P48,42.301,140.271,0.02,20 P49,42.319,140.274,0.02,20.02 P50,42.484,140.353,0.01,10.02 P51,42.537,140.399,0.01,10.03 P52,42.555,140.42,0.01,10.04 P53,42.503,140.798,0.02,20.1 P54,42.395,140.911,0.01,10.06 P55,42.386,141.076,0.01,10.07 P56,42.440,141.151,0.01,10.08 P57,42.560,141.376,0.01,10.09 P58,42.617,141.782,0.01,10.1 P59,42.581,141.905,0.03,30.33 P60,42.555,141.939,0.01,10.12 P61,42.484,142.046,0.03,30.39 P62,42.473,142.118,0.02,20.28 P63,42.448,142.196,0.02,20.3 P64,42.309,142.432,0.03,30.48 P65,42.304,142.454,0.02,20.34 P66,42.266,142.513,0.02,20.36 P67,42.228,142.614,0.02,20.38 P68,42.217,142.642,0.01,10.2 P69,42.192,142.723,0.03,30.63 P70,42.137,142.86,0.04,40.88 P71,42.137,142.91,0.01,10.23 P72,41.990,143.245,0.04,40.96 P73,41.998,143.253,0.05,51.25 ``` </details> ## Results: Deposit for each phase (2-step optimization) | plinian-dataset | coign-dataset | | -------- | -------- | | ![](https://i.imgur.com/ZPJE4Ch.png) | ![](https://i.imgur.com/twEbhDm.png) | ## Correction factor Each deposit field was corrected using the correction factor: $$K=\exp\left[\frac{1}{n}\sum_i \ln(Obs_i/Mod_i)\right]$$ | plinian-dataset | coign-dataset | | -------- | -------- | | $$k_1=3.74$$ | $$k_2=4.34$$ | | plinian-dataset | coign-dataset | | -------- | -------- | | ![](https://i.imgur.com/LgVjHlw.png) | ![](https://i.imgur.com/lq9tziK.png) | ## Total deposit $$ deposit(total) = k_1 *deposit(plinian) + k_2*deposit(coign) $$ ![](https://i.imgur.com/m73QntE.png) ![](https://i.imgur.com/Aacx8Yo.png)