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the numerical sea ice forecast in finland in the winter 1993-94 ...

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Ice thickness: Fast <strong>ice</strong> 45-65 cm, snow 2-15 cm. Off <strong>the</strong> fast <strong>ice</strong> at first an area of 20-40 cm thick<br />

consolidated rafted <strong>ice</strong>. Fur<strong>the</strong>r off 15-30 cm thick very close drift <strong>ice</strong> <strong>in</strong> vast floes. The western<br />

part is covered by 15-30 cm thick more leve1 rafted <strong>ice</strong>,.<br />

Ice types <strong>in</strong> <strong>the</strong> image: Fast <strong>ice</strong>, leve1 <strong>ice</strong> toncentration 100 %, drift <strong>ice</strong> toncentration 100 %, leve1<br />

<strong>ice</strong> of toncentration 100 %.<br />

Verification: Very good even <strong>in</strong> details.<br />

Obscurity: No.<br />

Date: 05.03.19<strong>94</strong> 09:48 UTC<br />

Image: ers-<strong>94</strong>030566<br />

Area: Off Rauma<br />

Ice thickness: From east to west 20-40 cm thick consolidated <strong>ice</strong> with narrow leads, <strong>the</strong>n lo-40 cm<br />

thick ridged consolidated <strong>ice</strong>. In <strong>the</strong> south <strong>the</strong>re is open water and 15-40 cm thick open drift <strong>ice</strong>.<br />

Ice types <strong>in</strong> <strong>the</strong> image: Consolidated <strong>ice</strong> toncentration 100 %, drift <strong>ice</strong> toncentration 50 %, rafted<br />

<strong>ice</strong>, ridged <strong>ice</strong>.<br />

Verification: Partly <strong>ice</strong> edge.<br />

Obscurity: Ice edge.<br />

Date: 05.03.19<strong>94</strong> 09:48 UTC<br />

Image: ers-<strong>94</strong>0305-d7<br />

Area: Off Mariehamn<br />

Ice thickness: Fast <strong>ice</strong> 20-40 cm thick <strong>the</strong>n lo-30 cm thick rafted mostly leve1 <strong>ice</strong>. Fur<strong>the</strong>r to <strong>the</strong><br />

northwest and to <strong>the</strong> north open water. The most nor<strong>the</strong>m part consists of 20-40 cm thick ridged<br />

consolidated <strong>ice</strong> and close drift <strong>ice</strong>.<br />

Ice types <strong>in</strong> <strong>the</strong> image: Fast <strong>ice</strong>, leve1 <strong>ice</strong> toncentration 98-100 %, consolidated <strong>ice</strong> toncentration<br />

100 %, drift <strong>ice</strong> toncentration 70 %, rafted <strong>ice</strong>, ridged <strong>ice</strong>.<br />

Verification: Partly <strong>ice</strong> edge.<br />

Obscurity: Ice edge.<br />

Date: 05.03.19<strong>94</strong> 09:48 UTC<br />

Image: ers-<strong>94</strong>0305-d8<br />

Area: Off Stockholm<br />

Ice thickness: At first 20-40 cm thick fast <strong>ice</strong> <strong>the</strong>n 20-40 cm thick consolidated <strong>ice</strong> with leads and<br />

cracks.<br />

Ice types <strong>in</strong> <strong>the</strong> image: Fast <strong>ice</strong>, leve1 <strong>ice</strong> toncentration 95 100 %.<br />

Verification: Very good even <strong>in</strong> details. Ice edge is clear.<br />

Obscurity: No.<br />

Date: 07.03.19<strong>94</strong> 20: 10 UTC<br />

Image: ers-<strong>94</strong>0307-sl<br />

Area: Off Hels<strong>in</strong>ki<br />

Ice thickness: Fast <strong>ice</strong> 40-60 cm, snow 0-15 cm. Off <strong>the</strong> fast <strong>ice</strong> 20-40 cm thick rafted and ridged<br />

consolidated <strong>ice</strong> with frozen leads. At <strong>the</strong> Estonian coast off <strong>the</strong> fast <strong>ice</strong> a lead.<br />

Ice types <strong>in</strong> <strong>the</strong> image: Fast <strong>ice</strong>, consolidated <strong>ice</strong> toncentration 99 %, rafted <strong>ice</strong>, ridged <strong>ice</strong>.<br />

Verification: Fast <strong>ice</strong> is visible with ship l<strong>in</strong>es. Off <strong>the</strong> fast <strong>ice</strong> <strong>the</strong>re could be seen consolidated <strong>ice</strong><br />

with ridges and more leve1 <strong>ice</strong>. Leads are visible.<br />

Obscurity: No.<br />

Date: 07.03.19<strong>94</strong> 20: 10 UTC<br />

Image: ers-<strong>94</strong>0307-a6<br />

Area: Off Kokkola<br />

Ice thickness: Fast <strong>ice</strong> 45-65 cm, snow 5-20 cm. Off <strong>the</strong> 20-40 cm thick fast <strong>ice</strong> leve1 <strong>ice</strong> with cracks,<br />

<strong>the</strong>n 30-50 cm thick rafted consolidated <strong>ice</strong>. Fur<strong>the</strong>r off consolidated 40-70 cm thick <strong>ice</strong> with<br />

ridges.<br />

47

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