%Lake Tchad
% 
%1st column : date
%2nd column : height (m)
%3rd column : standard deviation from height
%-------------------------------------------
1992.76	279.776	0.2663421
1992.78	279.608	0.40427014
1992.8	279.242	0.90664917
1992.84	280.038	0.15743845
1992.86	279.32	0.58208149
1992.89	279.539	0.62339913
1992.9	279.451	0.45448109
1992.93	279.118	0.10648818
1992.96	279.463	0.33989475
1993	279.441	0.24194036
1993.02	279.491	0.17788326
1993.04	279.166	0.15378749
1993.07	279.15	0.1068689
1993.09	279.124	0.28176808
1993.12	279.162	0.16489661
1993.15	279.02	0.14631605
1993.22	278.859	0.19081359
1993.25	278.886	0.18135626
1993.29	278.638	0.17738487
1993.31	278.616	0.21738615
1993.34	278.414	0.2456647
1993.38	278.455	0.3942606
1993.4	278.298	0.21841243
1993.42	278.195	0.32025372
1993.45	278.168	0.29640568
1993.48	278.088	0.41822512
1993.52	278.442	0.21589655
1993.53	277.866	0.66431117
1993.58	278.196	1.0319384
1993.63	278.85	1.04101052
1993.64	277.402	0.53303323
1993.68	279.502	0.13041431
1993.7	279.719	0.72690941
1993.73	279.958	0.34469099
1993.76	279.726	0.21569109
1993.79	279.481	0.57720707
1993.8	278.651	1.18066637
1993.87	279.33	0.63061378
1993.9	279.714	0.38570127
1993.91	279.039	0.38157598
1993.94	279.101	0.36768346
1993.96	278.873	0.06712294
1994	279.338	0.18701354
1994.02	279.054	0.30318552
1994.04	279.149	0.36352574
1994.07	279.075	0.10013237
1994.11	279.037	0.2049789
1994.14	278.919	0.2070089
1994.17	278.948	0.24485978
1994.2	278.805	0.25110628
1994.24	278.635	0.22323058
1994.26	278.435	0.15955169
1994.29	278.457	0.20685253
1994.32	278.303	0.07944385
1994.35	278.246	0.13626644
1994.39	278.39	0.27060146
1994.4	278.233	0.24308667
1994.44	278.126	0.45114522
1994.47	277.963	0.55600425
1994.52	278.35	0.36740555
1994.55	278.737	0.64488089
1994.58	278.89	0.4506354
1994.61	278.673	0.65734699
1994.63	278.515	0.60923864
1994.64	278.547	0.67624007
1994.68	278.717	0.67295311
1994.7	278.289	0.54506512
1994.74	279.347	0.63182437
1994.77	279.147	0.74678269
1994.79	280.071	0.42602267
1994.8	279.497	0.62198156
1994.83	279.556	0.47791872
1994.9	280.095	0.2619318
1994.93	279.718	0.41616386
1994.95	279.992	0.14869821
1994.97	279.816	0.18930972
1995	279.748	0.18074419
1995.02	279.738	0.1490494
1995.05	279.628	0.18451319
1995.08	279.497	0.23829792
1995.12	279.457	0.15741079
1995.13	279.394	0.25911111
1995.15	279.469	0.15950716
1995.22	279.235	0.21261319
1995.24	279.046	0.17480969
1995.27	279.086	0.21207946
1995.3	279.061	0.1711792
1995.32	278.96	0.22342545
1995.38	278.773	0.1565884
1995.41	278.914	0.03688129
1995.45	278.627	0.20181661
1995.46	278.488	0.24645342
1995.49	278.528	0.26279076
1995.54	278.169	0.32369276
1995.57	278.156	0.34391056
1995.61	278.439	0.6424382
1995.62	278.101	0.29659045
1995.65	278.492	0.63267885
1995.67	278.345	0.23864425
1995.7	278.972	1.05583965
1995.74	278.956	0.92038362
1995.77	279.898	0.21136713
1995.78	279.277	1.00429973
1995.84	279.597	0.64722571
1995.88	280.299	0.28590192
1995.89	279.381	0.1493735
1995.95	279.808	0.24060068
1995.97	279.785	0.23126172
1996.01	279.817	0.1463956
1996.03	279.768	999.999
1996.05	279.652	0.12865619
1996.09	279.54	0.24084657
1996.12	279.558	0.08355001
1996.16	279.413	0.27219322
1996.19	279.28	0.27125564
1996.22	279.158	0.32566122
1996.26	279.03	0.51089692
1996.27	279.067	0.20243742
1996.31	278.86	0.17435905
1996.34	278.938	0.29471941
1996.36	278.803	0.22328547
1996.38	278.802	0.23310576
1996.41	278.744	0.19993121
1996.43	278.542	0.22860206
1996.49	278.778	0.32410816
1996.52	278.563	0.33542614
1996.54	278.485	0.36714745
1996.57	278.552	0.56591739
1996.6	278.285	0.17126432
1996.64	278.75	0.55141427
1996.65	278.833	0.57776867
1996.69	278.921	0.64633055
1996.7	278.348	0.07608353
1996.73	279.164	0.69933323
1996.76	279.37	0.7180019
1996.81	279.628	0.51116361
1996.84	279.791	0.40954054
1996.88	279.871	0.31222573
1996.89	279.95	0.2461442
1996.92	279.985	0.28483474
1996.95	280.04	0.12187055
1996.98	279.978	0.0743806
1997.02	279.962	0.17257675
1997.04	279.837	0.42982899
1997.05	279.8	0.04960568
1997.08	279.713	0.15117687
1997.14	279.538	0.23653696
1997.17	279.501	0.21601798
1997.21	279.323	0.18516532
1997.22	279.299	0.16815401
1997.25	279.308	0.14435419
1997.28	279.2	0.1524113
1997.3	279.133	0.18364165
1997.33	279.011	0.25669518
1997.37	279.011	0.1488214
1997.39	278.991	0.2204491
1997.41	278.828	0.21880284
1997.47	278.782	0.22923466
1997.49	278.92	0.27067562
1997.54	278.973	0.30369998
1997.55	278.793	0.31459955
1997.58	278.841	0.42832575
1997.64	278.818	0.55867945
1997.66	278.913	0.55912667
1997.7	279.694	0.26466906
1997.71	279.196	0.54575308
1997.74	279.366	0.374412
1997.79	279.516	0.30436187
1997.82	279.397	0.17663618
1997.86	279.738	0.20753475
1997.87	279.636	0.19463454
1997.9	279.679	0.1535383
1997.93	279.596	999.999
1997.95	279.647	0.17089276
1997.98	279.638	0.24694904
1998.02	279.451	0.1182033
1998.03	279.566	0.18900949
1998.09	279.473	0.22292827
1998.11	279.335	0.2002343
1998.14	279.242	0.22940431
1998.19	279.392	0.10924562
1998.2	279.175	0.22942347
1998.23	279.223	0.17575321
1998.26	279.002	0.18469424
1998.28	278.976	0.2450286
1998.31	278.915	0.25105259
1998.35	278.759	0.26241842
1998.36	278.792	0.2679315
1998.42	278.591	0.24484041
1998.44	278.456	0.17040703
1998.47	278.518	0.25296296
1998.51	278.859	0.11230332
1998.53	278.255	0.31552794
1998.55	278.242	0.3732931
1998.61	278.5	0.65638305
1998.64	278.69	0.62050578
1998.67	278.667	0.71737222
1998.69	278.851	0.69378015
1998.71	278.916	0.66986386
1998.74	279.43	0.5641784
1998.77	279.74	0.45222292
1998.84	280.13	0.31183166
1998.85	280.187	0.19980844
1998.88	280.304	0.20110937
1998.9	280.373	0.23766282
1998.93	280.39	0.12665085
1998.97	280.147	0.16260606
1998.99	280.217	0.23163192
1999.01	280.074	0.21769523
1999.04	280.029	0.30829815
1999.09	279.872	0.1968904
1999.12	279.76	0.24169395
1999.16	279.527	0.20932966
1999.18	279.543	0.17047277
1999.21	279.506	0.22456515
1999.24	279.421	0.08562383
1999.27	279.214	0.23510657
1999.3	279.136	0.22472973
1999.34	278.953	0.20968802
1999.37	278.997	0.20596671
1999.41	278.836	0.19003185
1999.42	278.927	0.15831049
1999.46	279.008	0.1533836
1999.48	278.609	0.17790851
1999.52	278.631	0.25440465
1999.53	278.564	0.24021408
1999.56	278.652	0.26101705
1999.59	278.792	0.289133
1999.63	279.152	0.30020226
1999.64	278.759	0.27347295
1999.69	279.026	0.34654022
1999.72	279.286	0.12701888
1999.75	279.643	0.2816044
1999.79	280.144	0.14511611
1999.82	279.927	0.18537802
1999.83	280.011	0.12557264
1999.86	280.129	0.13504064
1999.9	280.45	0.06434816
1999.92	280.335	0.15282992
1999.98	280.351	0.17511604
1999.99	280.355	0.2139405
2000.02	280.31	0.2545488
2000.04	280.2	0.25136893
2000.07	280.057	0.23295775
2000.11	279.828	0.06296615
2000.12	279.827	0.23280181
2000.15	279.889	0.12674221
2000.18	279.687	0.21773906
2000.21	279.632	0.17762877
2000.24	279.527	0.07206896
2000.29	279.347	0.23399525
2000.32	279.211	0.24887743
2000.34	279.168	0.21618653
2000.39	279.278	0.71947111
2000.42	279.071	0.4770608
2000.44	278.863	0.25249746
2000.45	278.788	0.27647832
2000.48	278.789	0.34746117
2000.51	278.685	0.32695543
2000.54	278.725	0.24994131
2000.6	279.003	0.36409235
2000.61	278.906	0.31232212
2000.64	278.918	0.43793944
2000.67	279	0.4613373
2000.69	279.017	0.48431557
2000.72	279.223	0.37225342
2000.76	279.739	0.2708783
2000.78	279.431	0.18719419
2000.8	279.534	0.12907636
2000.87	279.773	0.20875746
2000.89	279.725	0.11595408
2000.91	279.617	0.2050879
2000.94	279.626	0.16868145
2000.97	279.604	0.15864286
2001.01	279.506	0.43050045
2001.02	279.45	0.36476367
2001.07	279.365	0.12966706
2001.1	279.246	0.20087525
2001.13	279.309	0.15554193
2001.15	279.201	0.19166393
2001.19	279.123	0.17223119
2001.23	279.03	0.2715943
2001.24	279.047	0.2169764
2001.27	278.96	0.17380076
2001.31	278.859	0.14251792
2001.32	278.79	0.1444409
2001.37	278.727	0.21170516
2001.38	278.688	0.278341
2001.4	278.625	0.2084495
2001.43	278.535	0.17802052
2001.46	278.372	0.18219864
2001.49	278.561	0.37362881
2001.51	278.35	0.32763473
2001.55	278.584	0.36565296
2001.58	278.613	0.51030622
2001.59	278.42	0.54535104
2001.62	278.6	0.61645319
2001.65	278.593	0.74690022
2001.67	278.676	0.71157206
2001.71	279.803	0.32754776
2001.73	279.317	0.52174037
2001.77	279.661	0.47191488
2001.78	279.615	0.26106439
2001.81	279.912	0.25973703
2001.84	279.86	0.25396864
2001.88	280.156	0.18522186
2001.89	280.158	0.19230033
2001.92	280.072	0.29988777
2001.94	280.05	0.38974871
2001.97	279.981	0.26707281
2002	279.857	0.31088803
2002.04	279.574	0.18845127
2002.05	279.7	0.32000324
2002.08	279.661	0.2711664
2002.12	279.518	0.11328196
2002.15	279.353	0.18184557
2002.18	279.337	0.2264037
2002.21	279.211	0.10745984
2002.22	279.238	0.24615688
2002.25	279.236	0.28448408
2002.27	279.188	0.24644795
2002.3	279.08	0.24839148
2002.34	278.918	0.16900327
2002.37	278.703	0.24703953
2002.38	278.763	0.18116829
2002.42	278.803	0.17134714
2002.44	278.653	0.2298296
2002.46	278.581	0.23969086
2002.51	278.493	0.21149513
2002.56	278.414	0.32134687
2002.57	278.333	0.2899404
2002.6	278.449	0.39785756
2002.62	278.453	0.34217423