# coef_talk.dat (File 7)

This file provides the coefficients *a*, *b*, and *c* used to calculate TALK from the potential temperature (T) and salinity (S). Each line of the file contains a longitude, latitude, offset coefficient *a* (between depths MLD and 1000 m), offset coefficient *a* (below 1000 m), T coefficient *b* (between depths MLD and 1000 m), T coefficient *b* (below 1000 m), S coefficient *c* (between depths MLD and 1000 m), and S coefficient *c* (below 1000 m). The file is sorted by longitude and latitude and can be read by using the following FORTRAN 77 code [contained in coef_talk.for (File 2)]:

REAL lon, lat, coef1, coef2, coef3, coef4, coef5 REAL coef6 read (1, 10, end=999) lon, lat, coef1, coef2, coef3, coef4, 1 coef5, coef6 10 format (F6.1, 1X, F6.1, 2X, F12.4, 1X, F12.4, 1X, F12.5, 1 1X, F12.5, 1X, F11.4, 1X, F11.4)

Stated in tabular form, the contents include the following:

Variable | Variable type | Variable width | Starting column | Ending column |
---|---|---|---|---|

lon | Numeric | 6 | 1 | 6 |

lat | Numeric | 6 | 8 | 13 |

coef1 | Numeric | 12 | 16 | 27 |

coef2 | Numeric | 12 | 29 | 40 |

coef3 | Numeric | 12 | 42 | 53 |

coef4 | Numeric | 12 | 55 | 66 |

coef5 | Numeric | 11 | 68 | 78 |

coef6 | Numeric | 11 | 80 | 90 |

The variables are defined as follows:

lon | - | is the longitude for which coefficients were calculated; |

lat | - | is the latitude for which coefficients were calculated; |

coef1 | - | is the offset coefficient a (for depths between MLD and 1000 m); |

coef2 | - | is the offset coefficient a (for depths below 1000 m); |

coef3 | - | is the T coefficient b (for depths between MLD and 1000 m); |

coef4 | - | is the T coefficient b (for depths below 1000 m); |

coef5 | - | is the S coefficient c (for depths between MLD and 1000 m); and |

coef6 | - | is the S coefficient c (for depths below 1000 m). |