Update iceSheetGeoJson.json

1 file changed +17 −22

Diff

diff --git a/iceSheetGeoJson.json b/iceSheetGeoJson.json
index afff902..66d981a 100644
--- a/iceSheetGeoJson.json
+++ b/iceSheetGeoJson.json
@@ -16,7 +16,7 @@
           [-75, 40.5],
           [-70, 41],
           [-65, 42],
-          [-60, 43], // Southern Edge (West to East)
+          [-60, 43],
           [-55, 48],
           [-50, 55],
           [-50, 60],
@@ -31,7 +31,7 @@
           [-130, 70],
           [-135, 65],
           [-130, 60],
-          [-125, 55], // Northern/Western Edge
+          [-125, 55],
           [-125, 48]
         ]
       ]
@@ -44,14 +44,14 @@
           [-135, 58],
           [-130, 55],
           [-125, 50],
-          [-120, 47], // Eastern Edge (South to North, approximate)
+          [-120, 47],
           [-122, 45],
           [-125, 46],
           [-130, 48],
           [-135, 52],
           [-140, 55],
           [-145, 58],
-          [-142, 60], // Western Edge (South to North, approximate Pacific coast)
+          [-142, 60],
           [-140, 62]
         ]
       ]
@@ -67,7 +67,7 @@
           [30, 52],
           [40, 53],
           [50, 55],
-          [60, 58], // Southern Edge (West to East, into Russia)
+          [60, 58],
           [70, 60],
           [75, 65],
           [70, 70],
@@ -79,13 +79,12 @@
           [10, 70],
           [0, 65],
           [-5, 60],
-          [-10, 55], // Northern Edge (East to West)
+          [-10, 55],
           [-10, 50]
         ]
       ]
     },
     "lgm_barents_kara": {
-      // Often considered with Fennoscandian but had distinct centers
       "type": "Polygon",
       "coordinates": [
         [
@@ -95,7 +94,7 @@
           [60, 60],
           [70, 60],
           [80, 62],
-          [90, 65], // Southern edge over land
+          [90, 65],
           [95, 70],
           [90, 75],
           [80, 80],
@@ -103,7 +102,7 @@
           [60, 82],
           [50, 80],
           [40, 78],
-          [30, 75], // Northern extent in Arctic Ocean
+          [30, 75],
           [30, 68]
         ]
       ]
@@ -149,7 +148,6 @@
       ]
     },
     "lgm_alpine": {
-      // European Alpine Ice Cap
       "type": "Polygon",
       "coordinates": [
         [
@@ -158,14 +156,14 @@
           [9, 44.5],
           [11, 44.5],
           [13, 45],
-          [15, 45.5], // Southern extent
+          [15, 45.5],
           [16, 46.5],
           [15, 47.5],
           [13, 48],
           [11, 48.5],
           [9, 48.5],
           [7, 48],
-          [5.5, 47.5], // Northern extent
+          [5.5, 47.5],
           [5, 45.5]
         ]
       ]
@@ -180,19 +178,18 @@
           [-68, -40],
           [-67, -45],
           [-66, -50],
-          [-65, -54], // Eastern extent
+          [-65, -54],
           [-68, -56],
           [-72, -55],
           [-75, -52],
           [-76, -48],
           [-77, -45],
-          [-76, -42], // Western extent (Pacific side)
+          [-76, -42],
           [-75, -38]
         ]
       ]
     },
     "lgm_antarctic_west": {
-      // West Antarctic Ice Sheet - grounded further out
       "type": "Polygon",
       "coordinates": [
         [
@@ -205,20 +202,19 @@
           [-110, -80],
           [-130, -78],
           [-150, -75],
-          [-170, -72], // Ross Sea / Ronne-Filchner grounding line approximations
+          [-170, -72],
           [-170, -70],
           [-150, -68],
           [-130, -66],
           [-110, -65],
           [-90, -64],
           [-70, -65],
-          [-60, -68], // Seaward edge
+          [-60, -68],
           [-60, -70]
         ]
       ]
     },
     "lgm_antarctic_east": {
-      // East Antarctic Ice Sheet - generally similar but with some coastal expansion
       "type": "Polygon",
       "coordinates": [
         [
@@ -230,7 +226,7 @@
           [120, -66],
           [140, -65],
           [160, -64],
-          [170, -65], // Coastal edge
+          [170, -65],
           [170, -75],
           [160, -80],
           [140, -85],
@@ -239,13 +235,12 @@
           [80, -85],
           [60, -80],
           [40, -75],
-          [20, -70], // Inland (approximating current bulk with some expansion)
+          [20, -70],
           [20, -65]
         ]
       ]
     },
-    // Note: More localized ice caps in areas like the Tibetan Plateau, New Zealand Alps, British-Irish Ice Sheet (sometimes shown separate from Fennoscandian) could be added for even greater detail.
-    // The British-Irish Ice Sheet is complex; part could be merged with Fennoscandian thinking or drawn separately:
+
     "lgm_british_irish": {
       "type": "Polygon",
       "coordinates": [