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| Fig. 1 The Ten WOD Zones |
An idea came to mind that may or may not pan out.
I wrote a software module to detect the 20 WOD Zones with the largest sea level change values.
I culled it down to ten zones, after removing those that the PSMSL folks said had stations in them with data aberrations.
The graph at Fig. 1 shows the ten WOD Zones that resulted after analyzing the original twenty.
My intentions are to find patterns (a.k.a. "finger prints") that would give us indications as to which ice sheet (Greenland or Antarctica) is impacting these zones.
The original set of PSMSL stations that garnered the most favor in that light numbered only about 23 (Golden 23 Zones Revisited; SLC Fingerprints R Us, 2; Weekend Rebel Science Excursion - 54).
Before I discuss possible avenues of inquiry to follow (in coming posts of this series) let's get familiar with the featured zones.
The following data (printed out by the software module I wrote) concerning the 10 WOD Zones and the PSMSL stations within them (click on the station number to go to the PSMSL website where there are more details about each station):
zone: 7307
4815.96 km from Greenland
8647.5 km from Antarctica
 |
| Fig. 2 Zone 7307 |
station: 148 (yrs: 116)
station: 180 (yrs: 104)
station: 224 (yrs: 79)
station: 234 (yrs: 97)
station: 299 (yrs: 91)
station: 311 (yrs: 88)
station: 360 (yrs: 87)
station: 396 (yrs: 83)
station: 399 (yrs: 53)
station: 412 (yrs: 81)
station: 462 (yrs: 27)
station: 481 (yrs: 10)
station: 597 (yrs: 53)
station: 636 (yrs: 67)
station: 719 (yrs: 10)
station: 786 (yrs: 33)
station: 862 (yrs: 16)
station: 945 (yrs: 12)
station: 971 (yrs: 13)
station: 1153 (yrs: 49)
station #1203 excluded [7 yrs]
station: 1295 (yrs: 47)
station: 1337 (yrs: 11)
station: 1338 (yrs: 10)
station: 1431 (yrs: 13)
station: 1444 (yrs: 35)
station: 1635 (yrs: 33)
station: 1636 (yrs: 33)
station #1651 excluded [9 yrs]
station #1720 excluded [4 yrs]
station #1721 excluded [4 yrs]
station: 2292 (yrs: 19)
station: 2294 (yrs: 26)
station: 2295 (yrs: 45)
zone: 1208
8242.4 km from Greenland
9504.89 km from Antarctica
 |
| Fig. 3 Zone 1208 |
station #49 excluded [6 yrs]
station: 369 (yrs: 77)
station: 417 (yrs: 50)
station: 543 (yrs: 65)
station: 1002 (yrs: 44)
station: 1161 (yrs: 43)
station: 1270 (yrs: 43)
station: 1369 (yrs: 33)
station: 1451 (yrs: 21)
station: 1454 (yrs: 24)
zone: 1314
7779.08 km from Greenland
13901 km from Antarctica
 |
| Fig. 4 Zone 1314 (corrected) |
station: 463 (yrs: 26)
station: 635 (yrs: 67)
station: 674 (yrs: 10)
station #879 excluded [7 yrs]
station #1140 excluded [9 yrs]
station: 1149 (yrs: 49)
station: 1191 (yrs: 50)
station: 1345 (yrs: 45)
station: 1346 (yrs: 44)
station: 1364 (yrs: 44)
station: 1544 (yrs: 36)
zone: 7300
4815.96 km from Greenland
3926.77 km from Antarctica
 |
| Fig. 5 Zone 7300 |
station: 162 (yrs: 78)
station: 208 (yrs: 36)
station: 209 (yrs: 59)
station: 488 (yrs: 74)
station: 490 (yrs: 55)
station: 496 (yrs: 60)
station: 498 (yrs: 74)
station #506 excluded [6 yrs]
station: 960 (yrs: 38)
station: 981 (yrs: 45)
station: 985 (yrs: 57)
station: 1336 (yrs: 14)
station: 1425 (yrs: 21)
station: 1455 (yrs: 20)
station: 1456 (yrs: 13)
station: 1460 (yrs: 10)
station: 1809 (yrs: 25)
station: 1810 (yrs: 25)
station: 1813 (yrs: 23)
station: 1883 (yrs: 20)
station: 1940 (yrs: 12)
station: 2047 (yrs: 19)
station #2054 excluded [8 yrs]
station #2055 excluded [8 yrs]
station: 2056 (yrs: 11)
station #2057 excluded [9 yrs]
station: 2058 (yrs: 10)
station #2059 excluded [9 yrs]
station: 2117 (yrs: 12)
zone: 1313
7779.08 km from Greenland
13901 km from Antarctica
 |
| Fig. 6 Zone 1313 |
station: 130 (yrs: 87)
station: 132 (yrs: 87)
station: 133 (yrs: 87)
station: 134 (yrs: 61)
station: 359 (yrs: 85)
station: 407 (yrs: 74)
station: 461 (yrs: 12)
station: 627 (yrs: 28)
station: 663 (yrs: 31)
station: 669 (yrs: 17)
station #673 excluded [7 yrs]
station: 701 (yrs: 65)
station: 722 (yrs: 63)
station #749 excluded [8 yrs]
station: 752 (yrs: 61)
station: 753 (yrs: 63)
station #783 excluded [6 yrs]
station: 808 (yrs: 61)
station: 809 (yrs: 60)
station: 810 (yrs: 56)
station: 811 (yrs: 60)
station: 812 (yrs: 61)
station: 814 (yrs: 58)
station: 815 (yrs: 60)
station: 816 (yrs: 61)
station: 817 (yrs: 61)
station: 845 (yrs: 37)
station: 846 (yrs: 36)
station: 847 (yrs: 34)
station: 860 (yrs: 23)
station: 868 (yrs: 16)
station: 872 (yrs: 13)
station: 876 (yrs: 11)
station #880 excluded [7 yrs]
station #881 excluded [7 yrs]
station: 912 (yrs: 51)
station: 952 (yrs: 49)
station #1023 excluded [6 yrs]
station: 1026 (yrs: 55)
station: 1028 (yrs: 55)
station: 1060 (yrs: 54)
station: 1061 (yrs: 53)
station: 1062 (yrs: 54)
station: 1064 (yrs: 45)
station: 1089 (yrs: 53)
station: 1090 (yrs: 53)
station: 1091 (yrs: 53)
station: 1093 (yrs: 53)
station: 1094 (yrs: 53)
station: 1095 (yrs: 53)
station: 1096 (yrs: 53)
station: 1097 (yrs: 53)
station: 1098 (yrs: 53)
station: 1099 (yrs: 53)
station: 1102 (yrs: 53)
station #1142 excluded [5 yrs]
station: 1146 (yrs: 49)
station: 1148 (yrs: 52)
station: 1150 (yrs: 52)
station: 1184 (yrs: 14)
station: 1190 (yrs: 50)
station: 1209 (yrs: 50)
station: 1210 (yrs: 50)
station: 1212 (yrs: 50)
station: 1222 (yrs: 15)
station: 1263 (yrs: 48)
station: 1264 (yrs: 48)
station: 1265 (yrs: 48)
station: 1293 (yrs: 47)
station: 1306 (yrs: 21)
station: 1320 (yrs: 46)
station: 1343 (yrs: 44)
station: 1344 (yrs: 44)
station: 1386 (yrs: 43)
station: 1387 (yrs: 42)
station: 1389 (yrs: 43)
station: 1390 (yrs: 43)
station: 1437 (yrs: 36)
station: 1438 (yrs: 36)
station: 1440 (yrs: 37)
station: 1488 (yrs: 39)
station: 1490 (yrs: 39)
station: 1523 (yrs: 28)
station: 1545 (yrs: 36)
station: 1567 (yrs: 34)
station: 1585 (yrs: 34)
station: 1789 (yrs: 26)
station: 1790 (yrs: 26)
station: 1830 (yrs: 20)
zone: 7500
2679.94 km from Greenland
6133.4 km from Antarctica
 |
| Fig. 7 Zone 7500 |
station: 15 (yrs: 89)
station: 21 (yrs: 104)
station: 66 (yrs: 17)
station: 95 (yrs: 120)
station: 190 (yrs: 38)
station: 202 (yrs: 103)
station: 219 (yrs: 47)
station: 257 (yrs: 14)
station: 286 (yrs: 57)
station: 314 (yrs: 40)
station: 350 (yrs: 57)
station: 361 (yrs: 83)
station: 432 (yrs: 72)
station: 435 (yrs: 35)
station: 755 (yrs: 42)
station: 765 (yrs: 18)
station: 802 (yrs: 13)
station: 861 (yrs: 16)
station: 916 (yrs: 45)
station: 936 (yrs: 55)
station: 939 (yrs: 13)
station: 944 (yrs: 13)
station: 967 (yrs: 12)
station: 982 (yrs: 57)
station: 1074 (yrs: 30)
station: 1109 (yrs: 52)
station: 1112 (yrs: 37)
station: 1214 (yrs: 32)
station: 1215 (yrs: 44)
station: 1281 (yrs: 12)
station: 1491 (yrs: 29)
station: 1505 (yrs: 36)
station: 1526 (yrs: 28)
station: 1700 (yrs: 30)
station: 1731 (yrs: 28)
station: 1732 (yrs: 24)
station: 1758 (yrs: 27)
station: 1771 (yrs: 24)
station: 1772 (yrs: 21)
station: 1773 (yrs: 27)
station: 1774 (yrs: 27)
station: 1775 (yrs: 26)
station: 1793 (yrs: 18)
station: 1794 (yrs: 26)
station: 1832 (yrs: 25)
station: 1854 (yrs: 24)
station: 1856 (yrs: 23)
station: 1867 (yrs: 23)
station: 1878 (yrs: 18)
station #2011 excluded [9 yrs]
station #2278 excluded [9 yrs]
station #2279 excluded [7 yrs]
station #2280 excluded [6 yrs]
station #2281 excluded [7 yrs]
station #2282 excluded [7 yrs]
station #2283 excluded [5 yrs]
station #2284 excluded [5 yrs]
station #2285 excluded [3 yrs]
zone: 1112
9954.44 km from Greenland
11676.8 km from Antarctica
 |
| Fig. 8 Zone 1112 |
station: 394 (yrs: 73)
station: 522 (yrs: 70)
station #548 excluded [7 yrs]
station: 664 (yrs: 26)
station: 1705 (yrs: 20)
station: 1711 (yrs: 23)
station #2035 excluded [8 yrs]
station #2150 excluded [5 yrs]
station #2151 excluded [5 yrs]
station #2157 excluded [6 yrs]
station #2172 excluded [6 yrs]
station #2173 excluded [6 yrs]
station #2176 excluded [6 yrs]
zone: 7209
6353.11 km from Greenland
10512.5 km from Antarctica
 |
| Fig. 9 Zone 7209 |
station: 440 (yrs: 34)
station: 497 (yrs: 73)
station: 538 (yrs: 61)
station: 725 (yrs: 55)
station: 828 (yrs: 51)
station: 918 (yrs: 27)
station: 919 (yrs: 27)
station: 920 (yrs: 23)
station: 922 (yrs: 12)
station: 1020 (yrs: 18)
station: 1038 (yrs: 35)
station: 1835 (yrs: 22)
station: 1903 (yrs: 20)
station: 2297 (yrs: 12)
zone: 7407
3736.51 km from Greenland
8835.99 km from Antarctica
 |
| Fig. 10 Zone 7407 |
station: 126 (yrs: 111)
station: 137 (yrs: 47)
station: 144 (yrs: 105)
station: 173 (yrs: 85)
station: 183 (yrs: 106)
station: 192 (yrs: 100)
station: 201 (yrs: 102)
station: 235 (yrs: 97)
station: 288 (yrs: 55)
station: 351 (yrs: 88)
station: 362 (yrs: 70)
station: 366 (yrs: 86)
station: 367 (yrs: 85)
station: 387 (yrs: 61)
station: 429 (yrs: 80)
station: 430 (yrs: 72)
station: 519 (yrs: 70)
station: 775 (yrs: 23)
station: 776 (yrs: 22)
station: 848 (yrs: 34)
station: 856 (yrs: 25)
station: 875 (yrs: 12)
station: 951 (yrs: 56)
station: 999 (yrs: 55)
station: 1005 (yrs: 33)
station: 1068 (yrs: 54)
station: 1111 (yrs: 53)
station: 1223 (yrs: 12)
station: 1244 (yrs: 49)
station: 1392 (yrs: 38)
station: 1637 (yrs: 29)
station #1654 excluded [6 yrs]
station: 1798 (yrs: 25)
station: 2291 (yrs: 14)
zone: 1110
9720.54 km from Greenland
11618.7 km from Antarctica
 |
| Fig. 11 Zone 1110 |
station: 444 (yrs: 75)
station: 449 (yrs: 63)
station: 1003 (yrs: 49)
station: 1407 (yrs: 12)
station: 1449 (yrs: 37)
station: 1475 (yrs: 36)
station: 1495 (yrs: 35)
station: 2267 (yrs: 10)
station: 2268 (yrs: 10)
As you can see, some PSMSL stations were not used because they had less than ten years of records.
Now, let me tell you how the graphs were made.
Each station record for each month of each year was selected for lowest and highest sea level change.
The graphs show the amount of change in millimeters.
This makes a pattern.
Take that pattern and notice the distance to the two main ice sheets, and ponder those facts.
Remember that sea level falls around Greenland and Antarctica when the ice sheet melts and thereby loses some of its gravitational power and pull on the ocean around it (NASA Busts The Ghost).
By sea level fall I mean that the water that was once captured by gravity is released to be relocated elsewhere on the planet (The Gravity of Sea Level Change, 2, 3, 4).
Something tells me that we may be able to use these zones listed above in order to detect which ice sheets impact the low and the high values of sea level change within these zones (Proof of Concept, 2, 3, 4, 5, 6, 7, 8, 9).
Professor Mitrovica (video below) and his team explained how to do so on the "golden 23" but the question is: "can we tell how ice sheet melt-water impacted these zones?"
UPDATE: I removed the incorrect distances that were on the graphs.The previous post in this series is here.
The distances in the station lists (to the left of each zone graph) are the correct distances.
Note that distances are calculated differently for Greenland and Antarctica.
Greenland distances are calculated from the center of the WOD Zone to the center of Greenland.
Antarctica distances are calculated from the center of the WOD Zone to the conjunction of latitude -90 (90S) and the longitude of the center of the WOD Zone (straight down to Antarctica from the zone's center).
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