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Tuesday, July 23, 2019

Ice Sheet Melt According To Tide Gauge Stations - 2

Fig. 1 SLF is proportional to Gravity Loss
In the previous post I argued for re-consideration as to how we should calculate ice sheet mass loss.

The way to deal with sea level fall (SLF) is, in the main, to depart from traditional "bathtub model" thinking (The Bathtub Model Doesn't Hold Water, 2, 3, 4, 5).

The way I see it is that combining sea level rise (SLR) and SLF together then dividing by two is not the way to correctly determine average global sea level characteristics when dealing with tide gauge station data.

As I see it, using in situ measurements of SLF at tide gauge stations offers a way to determine gravity loss and ice mass loss because SLF is, in the main, caused by gravity loss which is caused by a loss of ice mass.

Newton's formula F = G(m1 * m2 / r2), (where "G" is the gravitational constant)
Fig. 2 SLC per Tide Gauges
relates mass and gravitational force "F" together.

The graph at Fig. 1 shows the proportional relation and pattern SLF has with loss of gravity.

The crux of the matter is that the SLR and SLF that we are talking about (when we are considering tide gauge records) are marks or indications on tide gauge records over a period of up to three hundred years.

When we combine the values of those marks in a manner that in effect moves those marks up or down, we are disturbing reality with falsehoods.

Fig. 3 The Gravity of Sea Level Change
The marks are records of in situ events, actual reality, and facts that are not to be toyed with like toy rubber ducks in a bathtub.

The graph at Fig. 2 shows cumulated SLR and SLF patterns as they were marked over the years.

If you average them together into a relatively flat line, that averaging does not change the actual lines made by the sea's level on those tide gauges over the centuries.

Fig. 4 From The Hill
So why toy with unreality?

Why move the marks made on tide gauges in Greenland up and move the marks made on tide gauges in Argentina down by averaging them together (Fig. 3)?

The actual in situ measurements depicted in Fig. 3 show SLF at Greenland becoming lower and lower on the tide gauge as ice sheet gravity diminishes.

But, the actual in situ measurements depicted in Fig. 3 show SLR at Argentina going up and up as the ghost water is relocated from the Greenland coastline and surrounds to the South Atlantic off Argentina.

Fig. 5 There's been a lot of ice melt
Averaging the values of those two records of marks on tide gauge instruments does not move them from where they have always been in reality.

This tide gauge realm is not the realm of models, it is the realm of actual measurements (The World According To Measurements, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21).

Speaking of tables and measurements, I said I would provide a table from which the values in the first post were derived ("In the next post I will furnish the 1809 - 2018 Table ...").

In the previous post those values were compared with the values of a couple of very recent and valuable published papers that were analyzed in the first post of this series (Ice Sheet Melt According To Tide Gauge Stations).

Here is the table I promised (it indicates a lot of ice melt like Fig. 4 - Fig. 5 do):

YearSLRSLFSLR GTGhost Water GTIce Loss & Ghost Water GTGravity Loss [F = G(m1 m2 / r2)]
180986.79031,404.2031,404.20
181079.04028,599.9028,599.90
1811108.91039,408.1039,408.10
1812105.29-24.8438,098.26.706838,104.9-4.47632
181339.185014,178.7014,178.70
181474.75-26.5427,047.67.165827,054.8-4.78267
181558.25-27.0821,077.27.311621,084.5-4.87998
181691.12-0.2532,970.90.067532,971-0.0450515
181779.5028,766.4028,766.40
181897.37-1735,232.54.5935,237-3.0635
181973.45-16.3426,577.24.411826,581.6-2.94457
182021.26507,694.5507,694.550
182166.79024,167.4024,167.40
1822103.345037,394.5037,394.50
182355.665020,141.9020,141.90
182453.435019,335019,3350
182563.995023,156023,1560
182637.29-63.4613,49317.134213,510.2-11.4359
182729-3.6310,493.40.980110,494.4-0.654148
182865.685023,767.5023,767.50
182967.08-4.4624,272.31.204224,273.5-0.803719
183053.16-5.0419,235.51.360819,236.8-0.908239
1831113-30.6740,8888.280940,896.3-5.52692
183228.29-40.7110,236.510.991710,247.5-7.33619
183356.71-25.27520,5206.8242520,526.8-4.55471
183448.78017,650.6017,650.60
183514.04-17.865,080.254.82225,085.07-3.21848
183631.62-6.2611,441.41.690211,443.1-1.12809
18370-12.36503.338553.33855-2.22825
18380-42.55011.488511.4885-7.66777
18390-48.72013.154413.1544-8.77964
18400-19.6205.29745.2974-3.53564
18410-23.38506.313956.31395-4.21412
18420-43.265011.681511.6815-7.79662
184329.75-20.3610,764.85.497210,770.3-3.669
184461.46-14.80522,238.73.9973522,242.7-2.66795
184512.04-9.514,356.572.56774,359.13-1.71376
184659.3567-32.7821,477.78.850621,486.5-5.90716
184773.79-30.776726,700.28.309726,708.6-5.54614
184853.255-66.79519,269.818.034719,287.9-12.0369
184932.1633-41.6911,63811.256311,649.3-7.51279
185041.14-39.8214,886.110.751414,896.9-7.17581
185124.0367-22.0958,697.455.965658,703.42-3.98165
185258.0167-67.33520,992.818.180521,011-12.1342
1853104.91-60.976737,960.716.463737,977.2-10.9884
185441.8267-51.7515,134.613.972515,148.6-9.32567
185528.8333-70.0510,433.118.913510,452-12.6234
185652.21-53.4618,891.714.434218,906.2-9.63382
185758.935-73.816721,325.119.930521,345-13.3022
185816.12-57.675,832.8815.57095,848.45-10.3925
185952.86-61.1919,126.916.521319,143.4-11.0268
186074.68-67.265727,022.318.161727,040.4-12.1217
186128.53-77.717510,323.320.983710,344.3-14.0052
186278.08-62.801428,252.516.956428,269.5-11.3172
186350.676-49.22618,336.713.29118,349.9-8.87083
186420.96-58.56147,584.1915.81167,600-10.5531
186584.08-65.818930,423.617.771130,441.4-11.861
186657.37-61.446720,758.816.590620,775.4-11.0731
186785.3443-34.381430,881.19.2829930,890.3-6.19574
186859.3057-29.403321,459.27.938921,467.2-5.29866
186946.6538-38.826716,881.210.483216,891.7-6.9968
187047.1-76.278517,042.720.595217,063.3-13.7458
187174.125-87.331526,821.523.579526,845-15.7377
1872120.873-96.615843,736.926.086343,763-17.4108
187348.9733-43.450917,720.611.731717,732.3-7.83012
187435.287-76.063312,768.320.537112,788.8-13.7071
187547.795-128.86417,294.234.793417,329-23.2221
187647.69-81.911517,256.222.116117,278.3-14.761
187752.241-68.702918,902.918.549818,921.5-12.3807
187865.4791-29.081423,6937.8519923,700.9-5.24065
187964.75-64.88523,429.217.51923,446.7-11.6927
188048.812-53.59917,662.214.471717,676.7-9.65887
188140.252-61.814,564.816.68614,581.5-11.1367
188254.5817-72.060619,749.919.456419,769.3-12.9858
188345.5414-77.450616,478.820.911716,499.7-13.9571
188441.6642-95.436715,075.825.767915,101.6-17.1983
188545.436-84.24516,440.622.746216,463.4-15.1815
188652.2757-106.51218,915.528.758418,944.3-19.1942
188737.7093-70.062913,644.818.91713,663.7-12.6258
188841.319-83.425214,950.922.524814,973.4-15.0337
188935.1421-81.202612,715.921.924712,737.8-14.6332
189048.0154-56.650517,373.915.295617,389.2-10.2088
189142.4983-77.742615,377.620.990515,398.6-14.0097
189234.7709-74.451412,581.520.101912,601.6-13.4166
189361.3788-55.840622,209.315.07722,224.4-10.0628
189448.461-57.211717,535.215.447117,550.6-10.3099
189541.8443-80.021815,14121.605915,162.6-14.4204
189628.1413-63.489210,182.717.142110,199.8-11.4411
189736.7689-59.305313,304.516.012413,320.5-10.6872
189856.2936-59.923520,369.316.179420,385.5-10.7986
189994.8463-37.623534,319.310.158434,329.5-6.77999
190037.6781-73.824713,633.519.932713,653.4-13.3037
190141.9945-79.168115,195.321.375415,216.7-14.2666
190237.1614-64.877713,446.517.51713,464-11.6914
190378.0952-40.43228,25810.916628,269-7.28609
190432.8576-62.15411,889.216.781611,906-11.2005
190548.573-56.1317,575.715.155117,590.8-10.115
190648.3605-59.782617,498.816.141317,515-10.7732
190732.3167-61.257511,693.516.539511,710-11.039
190828.4216-75.716110,284.120.443310,304.5-13.6445
190942.0671-68.189715,221.618.411215,240-12.2882
191045.4057-79.974616,429.621.593116,451.2-14.4119
191155.7577-67.800720,175.418.306220,193.7-12.2181
191250.2919-69.762918,197.718.83618,216.5-12.5717
191367.6414-56.918824,475.415.368124,490.8-10.2571
191460.0881-67.385921,742.318.194221,760.5-12.1434
191555.5417-84.027420,097.322.687420,119.9-15.1423
191658.4817-81.776221,161.122.079621,183.1-14.7366
191744.3136-75.212716,034.520.307416,054.8-13.5538
191843.6678-73.955815,800.819.968115,820.8-13.3273
191947.057-84.466917,027.222.806117,050-15.2214
192043.5704-87.224815,765.623.550715,789.1-15.7184
192161.1374-63.817622,12217.230722,139.2-11.5003
192260.0169-66.875621,716.618.056421,734.6-12.0514
192356.2051-71.750220,337.319.372620,356.7-12.9298
192451.9558-83.433118,799.722.526918,822.3-15.0352
192568.8581-63.771524,915.717.218324,932.9-11.492
192655.9145-92.41320,232.224.951520,257.1-16.6534
192762.1587-73.261622,491.619.780622,511.3-13.2022
192864.2698-74.68623,255.420.165223,275.6-13.4589
192949.3589-78.38517,860.121.16417,881.2-14.1255
193053.2584-94.489719,271.125.512219,296.6-17.0276
193159.4582-90.389121,514.424.405121,538.8-16.2887
193258.5229-64.859521,17617.512121,193.5-11.6881
193346.4053-109.80816,791.329.648116,821-19.788
193445.1799-77.409616,347.920.900616,368.8-13.9497
193551.5639-71.499418,657.919.304818,677.2-12.8846
193661.6664-87.793122,313.423.704122,337.1-15.8208
193763.6981-92.428923,048.624.955823,073.5-16.6562
193865.2964-52.359323,626.914.13723,641-9.43547
193954.0647-86.51119,562.823.35819,586.2-15.5898
194062.3124-75.909222,547.220.495522,567.7-13.6793
194170.9335-95.636725,666.625.821925,692.5-17.2343
194259.8887-80.350921,670.221.694721,691.9-14.4797
194365.7229-56.87323,781.215.355723,796.6-10.2489
194466.2039-65.034423,955.317.559323,972.8-11.7196
194566.8451-67.725824,187.318.28624,205.6-12.2046
194670.1161-72.413525,370.919.551725,390.4-13.0494
194771.4785-91.262925,863.824.64125,888.5-16.4461
194885.1707-67.347930,818.218.183930,836.4-12.1365
194967.7182-59.458424,503.216.053824,519.3-10.7148
195064.0309-64.014223,16917.283823,186.3-11.5357
195170.9644-82.841325,677.822.367125,700.2-14.9285
195275.7239-64.64827,40017.45527,417.5-11.65
195364.9413-64.635923,498.417.451723,515.9-11.6478
195461.52-72.508122,260.419.577222,280-13.0664
195571.9444-73.158126,032.419.752726,052.2-13.1835
195670.7441-77.044525,598.120.80225,618.9-13.8839
195767.0637-72.198624,266.419.493624,285.9-13.0106
195876.9931-70.742427,859.319.100427,878.4-12.7482
195963.041-70.900122,810.819.14322,829.9-12.7766
196070.876-89.529125,645.924.172925,670-16.1337
196171.3146-66.809625,804.518.038625,822.6-12.0395
196268.8152-66.382724,900.217.923324,918.1-11.9626
196366.5913-75.976824,095.520.513724,116-13.6915
196463.9038-61.243923,12316.535923,139.6-11.0365
196568.7868-69.539724,889.918.775724,908.7-12.5315
196668.8358-70.384724,907.619.003924,926.6-12.6837
196774.9204-57.980427,109.315.654727,124.9-10.4484
196870.3528-68.801125,456.518.576325,475.1-12.3984
196972.9615-70.731526,400.519.097526,419.6-12.7463
197072.7825-70.756726,335.719.104326,354.8-12.7508
197173.6587-64.536626,652.717.424926,670.2-11.6299
197279.5346-72.823728,778.919.662428,798.6-13.1233
197379.0667-66.360228,609.617.917228,627.5-11.9585
197478.1179-74.910428,266.320.225828,286.5-13.4993
197581.1319-65.639929,356.817.722829,374.6-11.8287
197670.0063-74.651625,331.220.155925,351.3-13.4527
197771.3001-74.85925,799.320.211925,819.5-13.49
197876.1601-78.720927,557.821.254627,579.1-14.186
197977.9015-74.956528,18820.238328,208.2-13.5076
198073.7508-76.582326,686.120.677226,706.8-13.8006
198181.7621-71.383329,584.919.273529,604.2-12.8637
198283.6517-73.971830,268.619.972430,288.6-13.3302
1983101.238-71.091236,63219.194636,651.2-12.8111
198482.4284-84.721829,82622.874929,848.8-15.2674
198577.6984-79.666828,114.521.5128,136-14.3564
198676.6076-70.928427,719.819.150727,738.9-12.7817
198780.6751-77.171829,191.620.836429,212.4-13.9068
198879.6298-70.495828,813.319.033928,832.3-12.7038
198985.9396-69.828431,096.518.853731,115.3-12.5835
199082.0305-67.317929,68218.175829,700.2-12.1311
199183.4122-77.243430,18220.855730,202.8-13.9197
199284.2647-73.464930,490.419.835530,510.3-13.2388
199381.2166-77.902729,387.521.033729,408.5-14.0385
199480.0073-71.699828,949.919.358928,969.3-12.9207
199584.7377-78.075530,661.621.080430,682.7-14.0697
199689.5102-99.639832,388.526.902732,415.4-17.9557
199793.6223-81.692833,876.422.057133,898.4-14.7215
1998101.265-79.216836,641.721.388536,663.1-14.2753
199997.8074-81.339735,390.721.961735,412.7-14.6579
200095.7591-81.999434,649.622.139834,671.7-14.7768
200195.2933-86.016934,48123.224634,504.2-15.5008
200291.4528-78.530933,091.421.203333,112.6-14.1517
200398.907-75.51135,788.620.38835,809-13.6075
200495.503-77.040734,556.920.80134,577.7-13.8832
200599.3383-74.047235,944.719.992735,964.6-13.3438
200698.0888-78.667635,492.621.240335,513.8-14.1764
2007101.132-68.151936,593.718.40136,612.1-12.2814
2008106.562-73.627238,558.419.879338,578.3-13.2681
2009106.941-94.160438,695.825.423338,721.2-16.9683
2010117.713-108.74442,593.529.36142,622.8-19.5964
2011112.211-80.204740,602.421.655340,624.1-14.4534
2012116.892-87.321842,296.423.576942,320-15.7359
2013115.981-108.19841,966.629.213341,995.8-19.4979
2014118.004-103.79142,698.628.023542,726.6-18.7037
2015115.155-77.822541,667.721.012141,688.7-14.0241
2016129.731-92.687846,941.925.025746,967-16.7029
2017133.168-93.093548,185.625.135248,210.7-16.776
2018158.2-113.85957,243.430.741857,274.1-20.518

The graph at Fig. 1 is composed of the values in the "Ghost Water GT" column as well as the "Gravity Loss [F = G(m1 m2 / r2)]" column of the table.

As noted above, the purpose of the columns and the graph is to show the proportional relation between SLF and ice mass-gravity loss.

Other events can cause random SLF and SLR (rain deluges capturing water on land or inland bodies of water, etc.) but such random events are not as robust, regular, or systemic as ice sheet mass loss and gravity loss are.

The SLR and SLF values are tide gauge record compositions, while the GT values are calculated (SLR mm * 361.841 = GT).

Note that it is important to remember that even though I do not add the SLF to the SLR, that the SLR is an average (some SLR is well above the average shown in the table above ... see Countries With Sea Level Change, 2).

Here is a table of tide gauge stations with an average SLR over 100 mm:

Station NameStation #
(& Link)
Avg. SLR
DESCHAILLONS201340.388
DAUGAVGRIVA37331.889
MANILA S. HARBOR145285.583
GALVESTON II PIER 21 TX161261.707
HOEK VAN HOLLAND22253.814
PORT-SAINT-FRANCOIS137240.848
PHILADELPHIA (PIER 9N)135231.154
NEW YORK (THE BATTERY)12223.517
HARLINGEN25222.331
HALIFAX96221.497
AYUKAWA131220.687
ANNAPOLIS (NAVAL ACADEMY)311214.29
TRIESTE154188.311
MERA359182.952
WASHINGTON DC360180.441
NEUVILLE192179.135
DEN HELDER23178.684
ATLANTIC CITY180178.583
ABURATSUBO130171.681
HILO HAWAII ISLAND300169.959
PORT LYTTELTON247158.176
NEWPORT351157.95
DELFZIJL24148.761
CUXHAVEN 27147.598
GDANSK/NOWY PORT64147.587
VENEZIA (PUNTA DELLA SALUTE)168146.178
EASTPORT332143.98
MAASSLUIS9139.878
LA JOLLA (SCRIPPS PIER)256139.761
FREMANTLE111138.546
LEWES (BREAKWATER HARBOR)224138.092
NORTH SHIELDS95136.209
SEWELLS POINT HAMPTON ROADS299134.688
BREST1133.216
WELLINGTON HARBOUR221130.898
NORTH POINT333125.101
BALBOA163124.284
TOWER PIER336123.427
BOSTON235122.844
SEATTLE127121.511
ESBJERG80118.435
HONOLULU155114.556
PORT PIRIE216111.437
SAN DIEGO (QUARANTINE STATION)158111.389
WILLETS POINT362110.359
SHEERNESS3108.354
CASCAIS52106.124
LIVERPOOL GEORGES AND PRINCES PIERS15104.995
LOHM233104.83
KEY WEST188101.014

UPDATE: A recent paper indicates that there are valid reasons to check-up on computer models from time to time:
"How fast does warm ocean water melt glaciers that terminate in the sea? That question is central to understanding how fast ice sheets may lose mass, and thus how fast sea level will rise, in response to global warming, but there are few data about the process. Sutherland et al. used repeat multibeam sonar surveys to observe an Alaskan subsurface tidewater glacier face to create a time series of its melting and calving patterns. They observed melt rates up to a hundred times larger than those predicted by theory, observations that compel us to reevaluate predictions of such ice loss."
(Science Mag, emphasis added, cf. Phys. Org., Science Daily).

The previous post in this series is here.



2 comments:

  1. "Investigative reporter Seymour Hersh: The world is ‘run by ignoramuses, wackos and psychotics’" (link)

    ReplyDelete
  2. Touche. Sound arguments. Keep up the good work.

    ReplyDelete