| The following identifiers are defined: | Concentration |
| Stage of Development | |
| Form of Ice |
| CT | Total concentration, CC (code table 1) |
| CA | Partial concentration, stage of development and form of thickest ice CaCaSaSaFaFa (code tables 1, 2 and 3) |
| CB | Partial concentration, stage of development and form of second thickest ice CbCbSbSbFbFb (code tables 1, 2 and 3) |
| CC | Partial concentration, stage of development and form of third thickest ice CcCcScScFcFc (code tables 1, 2 and 3) |
| CF | Predominant FpFp and secondary FsFs form of ice (code table 3) |
| CN | Stage of development of ice thicker than reported by SaSa but with a concentration less than 1/10, SoSo (code table 2) |
| CD | Stage of development of any remaining class of ice SdSd not reported under CA, CB or CC (code table 2) (Note that no concentration or form of ice is reported for SoSo and SdSd). |
| Coding | CTCC CACaCaSaSaFaFa CBCbCbSbSbFbFb CCCcCcScScFcFc (CFFpFpFsFs) CNSoSo CDSdSd |
| Fully Utilized Egg Code | 4-6/211/7./4.1.7/1/~9 CC/CaCbCc/So/SaSbSc/Sd/FpFp |
| Graphical Egg Code |
|
| SIGRID | CT46CA209399CB109199CC108799CF1999CN95CD81 |
| Variable Identifier |
Variable(s) | Number of Variables |
Digits per Variable |
Total Number of Digits |
|---|---|---|---|---|
| CT | CC | 1 | 2 | 2 |
| CA | CaCaSaSaFaFa | 3 | 2 | 6 |
| CB | CbCbSbSbFbFb | 3 | 2 | 6 |
| CC | CcScScFcFc | 3 | 2 | 6 |
| CF | FpFpFsFs | 2 | 2 | 4 |
| CN | SoSo | 1 | 2 | 2 |
| CD | SdSd | 1 | 2 | 2 |
| CC | Total concentration of all ice in the area, reported in tenths (code table 1) |
|---|---|
| CaCa CbCb CcCc |
Partial concentration of respectively thickest, second thickest and third thickest ice reported in tenths (code table 1) |
| FaFa FbFb FcFc |
Form of ice corresponding to SaSa, SbSb, and ScSc respectively (code table 3) |
| FpFp FsFs |
Predominant (FpFp) and secondary (FsFs) form of ice (code table 3) |
| SaSa SbSb ScSc |
Stage of development of respectively thickest, second thickest and third thickest ice of which the concentration is reported CaCa, CbCb and CcCc respectively (code table 2) |
| SdSd | Stage of development of any remaining class of ice not reported by SaSa, SbSb, ScSc or SoSo (code table 2) |
| SoSo | Stage of development of ice thicker than SaSa but with a concentration less than 1/10 (code table 2) |
| Code Table 1 - Concentration (CC, CaCa, CbCb, CcCc) | Code Table 2 - Thickness of Ice or Stage of Development (SaSa, SbSb, ScSc, SdSd, SoSo) | Code Table 3 - Form of Ice (FaFa, FbFb, FcFc, FpFp, FsFs) | |||||
| Definition | Code Figure | Stage of Development | Thickness | Code Figure | Form | Size/Concentration | Code Figure |
| Ice Free | 00 | Ice Free | 00 | Pancake Ice | 30 cm - 3 m | 00 | |
| Less than 1/10 (open water) | 01 | No Stage of Development | 80 | Shuga/Small Ice Cake, Brash Ice | < 2 m across | 01 | |
| Bergy Water | 02 | New Ice | 81 | Ice Cake | < 20 m across | 02 | |
| 1/10 | 10 | Nilas, Ice Rind | < 10 cm | 82 | Small Floe | 20 m - 100 m across | 03 |
| 2/10 | 20 | Young Ice | 10 - 30 cm | 83 | Medium Floe | 100 m - 500 m across | 04 |
| 3/10 | 30 | Grey Ice | 10 - 15 cm | 84 | Big Floe | 500 m - 2 km across | 05 |
| 4/10 | 40 | Grey - White Ice | 15 - 30 cm | 85 | Vast Floe | 2 km - 10 km across | 06 |
| 5/10 | 50 | First Year Ice | 30 - 200 cm | 86 | Giant Floe | > 10 km across | 07 |
| 6/10 | 60 | Thin First Year Ice | 30 - 70 cm | 87 | Fast Ice | 08 | |
| 7/10 | 70 | Thin First Year Stage 1 | 30 - 50 cm | 88 | Growlers, Floebergs or Floebits | 09 | |
| 8/10 | 80 | Thin First Year Stage 2 | 50 - 70 cm | 89 | Icebergs | 10 | |
| 9/10 | 90 | For Later Use | 90 | Strips and Patches | concentrations 1/10 | 11 | |
| More than 9/10 less than 10/10 | 91 | Medium First Year Ice | 70 - 120 cm | 91 | Strips and Patches | concentrations 2/10 | 12 |
| 10/10 | 92 | For Later Use | 92 | Strips and Patches | concentrations 3/10 | 13 | |
| Thick First Year Ice | > 120 cm | 93 | Strips and Patches | concentrations 4/10 | 14 | ||
| For Later Use | 94 | Strips and Patches | concentrations 5/10 | 15 | |||
| Old Ice | 95 | Strips and Patches | concentrations 6/10 | 16 | |||
| Second Year Ice | 96 | Strips and Patches | concentrations 7/10 | 17 | |||
| Concentration Intervals | ClCh | Multi-Year Ice | 97 | Strips and Patches | concentrations 8/10 | 18 | |
| (Cl = lowest concentration in interval) | Glacier Ice | 98 | Strips and Patches | concentrations 9/10 | 19 | ||
| (Ch = Highest concentration in interval) | Undetermined/Unknown | 99 | Strips and Patches | concentrations 10/10 | 20 | ||
| Examples | Level Ice | 21 | |||||
| 1/10 - 3/10 | 13 | Undetermined/Unknown | 99 | ||||
| 4/10 - 6/10 | 46 | ||||||
| 7/10 - 9/10 | 79 | ||||||
| 9/10 - 10/10 | 91 | ||||||
| Unknown | 99 | ||||||
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Page last updated on August 23, 2004.