Review Sea-Ice Mapping for CMIP7 (#156)

* s02i308 (large scale liquid fraction) + s02i310 (convective liquid fraction) for Amon.clw (total cloud liquid fraction)

* s02i309 (large scale ice fraction) + s02i311 (convective ice fraction) for Amon.cli (total cloud ice fraction)

* s30i405 (total column liquid) + s30i406 (total column ice) for Amon.clwvi (total column liquid + ice)

* This is for AERmon.zg which is requested on model levels. The spreadsheet suggests using fld_s30i207: GEOPOTENTIAL HEIGHT ON P LEV/UV GRID, however CMIP7 requests this on model levels and so I've instead added fld_s16i201: GEOPOTENTIAL HEIGHT ON THETA LEVELS.

* Initial work on seaice variables

* Add new sea ice variables and their calculations to ACCESS-ESM1.6 mappings

* Update sea ice variable dimensions to use TLAT and TLON or ULAT ULON for consistency

* Update sea ice variable units and add new mass growth variable

* Add CF standard name and update calculation for surface upward mass flux of carbon dioxide "ra"

* Add ocean area calculation function and update mappings for areacello

* Add global average ocean calculation function and update mappings

* Add sea ice component to model mappings in load_model_mappings function

* Remove unimplemented calc_line_transport function and its documentation

* Remove unused calc_line_transport function from imports and custom functions

* Add sea ice calculation functions and update mappings in ACCESS-ESM1.6

* Update sea ice calculation functions to return values in 10⁶ km² and 10³ km³

* Refactor calculation method for siareaacrossline to use direct formula

* Refactor sidmassgrowthsi calculation to use direct formula

* Refactor sidmassgrowthbot calculation to use direct formula

* Refactor sidmassgrowthwat calculation to use direct formula

* Refactor sidmassmeltbot calculation to use direct formula

* Refactor sidmasssi mapping to use direct calculation method

* Refactor simass calculation to use direct method

* Refactor sisnthc calculation to use direct method

* Refactor sidmassmelttop calculation to use direct method

* Missing import

* Remove unused 'average_tile' function from custom_functions mapping

* Refactor imports and improve calc_global_ave_ocean function for lazy evaluation

* Clean merge

* Add SeaIce_CMORiser class for handling sea-ice variables in CMORisation

* Add SImon variable mappings for filtering in integration tests

* Pre-commit

* Add support for sea ice variables in load_filtered_variables and integration tests

* Add new surface upwelling shortwave flux variables and update simass calculation method

Author: rbeucher

src/access_moppy/derivations/__init__.py

@@ -1,9 +1,6 @@
 import operator
 from functools import reduce
 
-import numpy as np
-import xarray as xr
-
 from access_moppy.derivations.calc_aerosol import optical_depth
 from access_moppy.derivations.calc_atmos import (
     calculate_areacella,
@@ -35,6 +32,18 @@
     calc_zostoga,
     ocean_floor,
 )
+from access_moppy.derivations.calc_seaice import (
+    calc_hemi_seaice,
+    calc_seaice_extent,
+    calc_siarean,
+    calc_siareas,
+    calc_siextentn,
+    calc_siextents,
+    calc_sisnmassn,
+    calc_sisnmasss,
+    calc_sivoln,
+    calc_sivols,
+)
 from access_moppy.derivations.calc_utils import (
     calculate_monthly_maximum,
     calculate_monthly_minimum,
@@ -84,6 +93,16 @@
     "calc_vmo_corrected": calc_vmo_corrected,
     "ocean_floor": ocean_floor,
     "calc_areacello": calc_areacello,
+    "calc_seaice_extent": calc_seaice_extent,
+    "calc_hemi_seaice": calc_hemi_seaice,
+    "calc_siarean": calc_siarean,
+    "calc_siareas": calc_siareas,
+    "calc_sivoln": calc_sivoln,
+    "calc_sivols": calc_sivols,
+    "calc_sisnmassn": calc_sisnmassn,
+    "calc_sisnmasss": calc_sisnmasss,
+    "calc_siextentn": calc_siextentn,
+    "calc_siextents": calc_siextents,
 }