Lean's (2000) Total Solar Irradiance Data

(c) 2007 by Barton Paul Levenson



The table belows lists the estimates of mean annual total solar irradiance (TSI, the Solar Constant) from the article Lean, Judith 2000. "Evolution of the Sun's Spectral Irradiance Since the Maunder Minimum." Geophysical Research Letters, 27, 2425-2428. The units of TSI are watts per square meter. This is the mean flux density at Earth's distance from the sun.



YearTSI
16101364.734
16111364.708
16121365.068
16131365.161
16141365.220
16151364.946
16161364.547
16171364.419
16181364.398
16191364.472
16201364.457
16211364.443
16221364.429
16231364.415
16241364.366
16251364.551
16261364.439
16271364.345
16281364.254
16291364.119
16301363.921
16311363.870
16321363.830
16331363.920
16341363.840
16351363.833
16361363.793
16371363.780
16381364.204
16391364.244
16401363.824
16411363.694
16421363.976
16431363.734
16441363.643
16451363.561
16461363.559
16471363.557
16481363.549
16491363.540
16501363.536
16511363.534
16521363.560
16531363.538
16541363.512
16551363.479
16561363.473
16571363.462
16581363.446
16591363.438
16601363.450
16611363.443
16621363.439
16631363.439
16641363.439
16651363.440
16661363.440
16671363.439
16681363.438
16691363.438
16701363.437
16711363.443
16721363.440
16731363.437
16741363.439
16751363.437
16761363.447
16771363.437
16781363.436
16791363.435
16801363.440
16811363.435
16821363.435
16831363.435
16841363.444
16851363.436
16861363.440
16871363.437
16881363.441
16891363.443
16901363.445
16911363.451
16921363.456
16931363.458
16941363.459
16951363.459
16961363.458
16971363.458
16981363.459
16991363.460
17001363.465
17011363.470
17021363.479
17031363.506
17041363.535
17051363.566
17061363.568
17071363.589
17081363.583
17091363.590
17101363.620
17111363.666
17121363.688
17131363.706
17141363.754
17151363.804
17161363.847
17171363.909
17181363.853
17191364.018
17201364.007
17211364.053
17221364.002
17231363.989
17241364.089
17251364.102
17261364.288
17271364.301
17281364.482
17291364.225
17301364.514
17311364.063
17321364.195
17331364.127
17341364.165
17351364.299
17361364.501
17371364.354
17381364.317
17391364.541
17401364.257
17411364.558
17421364.289
17431364.234
17441364.184
17451364.194
17461364.216
17471364.246
17481364.658
17491364.691
17501364.655
17511364.486
17521364.471
17531364.501
17541364.466
17551364.496
17561364.551
17571364.674
17581364.792
17591364.860
17601364.844
17611365.016
17621364.927
17631364.895
17641364.877
17651364.738
17661364.714
17671364.903
17681365.128
17691365.296
17701365.322
17711365.274
17721365.258
17731365.089
17741365.073
17751364.950
17761364.991
17771365.130
17781365.341
17791365.388
17801365.218
17811365.326
17821365.070
17831364.948
17841364.770
17851364.777
17861365.035
17871365.156
17881365.084
17891365.061
17901364.972
17911364.831
17921364.802
17931364.745
17941364.602
17951364.444
17961364.372
17971364.290
17981364.254
17991364.260
18001364.308
18011364.554
18021364.403
18031364.232
18041364.188
18051364.151
18061364.023
18071363.931
18081363.866
18091363.807
18101363.798
18111363.840
18121363.921
18131364.004
18141364.067
18151364.150
18161364.239
18171364.194
18181364.135
18191364.127
18201364.082
18211364.123
18221364.236
18231364.289
18241364.367
18251364.462
18261364.575
18271364.687
18281364.770
18291364.795
18301364.850
18311364.716
18321364.652
18331364.607
18341364.675
18351364.948
18361365.338
18371365.434
18381365.254
18391365.183
18401365.070
18411364.920
18421364.865
18431364.806
18441364.851
18451364.982
18461365.080
18471365.185
18481365.385
18491365.391
18501365.198
18511365.157
18521365.019
18531364.882
18541364.773
18551364.725
18561364.761
18571364.894
18581365.095
18591365.309
18601365.365
18611365.243
18621365.070
18631364.942
18641364.833
18651364.724
18661364.657
18671364.607
18681364.767
18691365.007
18701365.247
18711365.201
18721365.158
18731364.953
18741364.795
18751364.615
18761364.550
18771364.563
18781364.567
18791364.617
18801364.773
18811364.920
18821364.955
18831365.000
18841364.901
18851364.739
18861364.512
18871364.419
18881364.362
18891364.340
18901364.398
18911364.682
18921364.815
18931364.988
18941365.104
18951364.988
18961364.787
18971364.611
18981364.556
18991364.486
19001364.458
19011364.418
19021364.484
19031364.744
19041365.050
19051364.882
19061365.078
19071364.932
19081364.951
19091364.802
19101364.657
19111364.587
19121364.572
19131364.624
19141364.720
19151365.041
19161365.261
19171365.415
19181365.373
19191365.137
19201364.984
19211364.911
19221364.835
19231364.901
19241364.957
19251365.180
19261365.300
19271365.496
19281365.381
19291365.352
19301365.359
19311365.280
19321365.207
19331365.106
19341365.234
19351365.457
19361365.852
19371365.786
19381365.720
19391365.710
19401365.680
19411365.662
19421365.627
19431365.527
19441365.591
19451365.870
19461365.972
19471366.217
19481366.353
19491366.263
19501366.022
19511365.788
19521365.774
19531365.620
19541365.647
19551365.772
19561366.314
19571366.681
19581366.655
19591366.413
19601366.300
19611365.912
19621365.702
19631365.645
19641365.661
19651365.724
19661365.951
19671366.183
19681366.259
19691366.357
19701366.348
19711366.019
19721366.054
19731365.761
19741365.679
19751365.502
19761365.644
19771365.856
19781366.310
19791366.677
19801366.691
19811366.728
19821366.300
19831366.200
19841365.815
19851365.651
19861365.647
19871365.799
19881366.092
19891366.657
19901366.562
19911366.455
19921366.311
19931366.038
19941365.806
19951365.709
19961365.621
19971365.749
19981366.111
19991366.394
20001366.674


For the period 1610-2000 (N = 391), the mean value for TSI is 1364.665 W m-2, with a sample standard deviation of 0.840. For 1951-2000 (N = 50), the respective figures are 1366.064 W m-2 and 0.373.

The chart below graphs the TSI data against elapsed time. The Maunder Minimum and the solar influence for the Little Ice Age and the 1880-1940 global warming are clearly evident. Also clearly evident is that there has been no net trend for about the last 50 years. Therefore, increased sunlight cannot be driving the sharp global warming of the last 30 years.



chart image



Page created:07/19/2007
Last modified:  02/09/2011
Author:BPL