tdiagnostics-list.txt - pism - [fork] customized build of PISM, the parallel ice sheet model (tillflux branch)
(HTM) git clone git://src.adamsgaard.dk/pism
(DIR) Log
(DIR) Files
(DIR) Refs
(DIR) LICENSE
---
tdiagnostics-list.txt (29015B)
---
1 .. -*- mode: rst -*-
2
3 .. DO NOT EDIT. This file was generated using list_diagnostics.py.
4
5
6 .. _sec-extra_vars:
7
8 Spatially-variable fields
9 -------------------------
10
11 #. ``air_temp_mean_summer``
12
13 :Units: Kelvin
14 :Description: mean summer near-surface air temperature used in the cosine yearly cycle
15
16 #. ``air_temp_sd``
17
18 :Units: Kelvin
19 :Description: standard deviation of near-surface air temperature
20
21 #. ``air_temp_snapshot``
22
23 :Units: Kelvin
24 :Description: instantaneous value of the near-surface air temperature
25
26 #. ``basal_mass_flux_floating``
27
28 :Units: kg m-2 year-1
29 :Description: average basal mass flux over the reporting interval (floating areas)
30 :Comment: positive flux corresponds to ice gain
31
32 #. ``basal_mass_flux_grounded``
33
34 :Units: kg m-2 year-1
35 :Description: average basal mass flux over the reporting interval (grounded areas)
36 :Comment: positive flux corresponds to ice gain
37
38 #. ``basal_melt_rate_grounded``
39
40 :Units: m year-1
41 :Description: ice basal melt rate from energy conservation, in ice thickness per time (valid in grounded areas)
42 :Comment: positive basal melt rate corresponds to ice loss
43
44 #. ``bedtoptemp``
45
46 :Units: Kelvin
47 :Description: temperature at the top surface of the bedrock thermal layer
48
49 #. ``beta``
50
51 :Units: Pa s / m
52 :Description: basal drag coefficient
53
54 #. ``bfrict``
55
56 :Units: W m-2
57 :Description: basal frictional heating
58
59 #. ``bheatflx``
60
61 :Units: mW m-2
62 :Description: upward geothermal flux at the bottom bedrock surface
63 :Comment: positive values correspond to an upward flux
64
65 #. ``bmelt``
66
67 :Units: m year-1
68 :Description: ice basal melt rate from energy conservation and subshelf melt, in ice thickness per time
69 :Standard name: ``land_ice_basal_melt_rate``
70 :Comment: positive basal melt rate corresponds to ice loss
71
72 #. ``bwat``
73
74 :Units: m
75 :Description: thickness of transportable subglacial water layer
76
77 #. ``bwatvel``
78
79 - ``bwatvel[0]``
80
81 :Units: m s-1
82 :Description: velocity of water in subglacial layer, i-offset
83
84 - ``bwatvel[1]``
85
86 :Units: m s-1
87 :Description: velocity of water in subglacial layer, j-offset
88
89 #. ``bwp``
90
91 :Units: Pa
92 :Description: pressure of transportable water in subglacial layer
93
94 #. ``bwprel``
95
96 :Units: ---
97 :Description: pressure of transportable water in subglacial layer as fraction of the overburden pressure
98
99 #. ``cell_grounded_fraction``
100
101 :Units: ---
102 :Description: fractional grounded/floating mask (floating=0, grounded=1)
103
104 #. ``climatic_mass_balance``
105
106 :Units: kg m-2 year-1
107 :Description: surface mass balance (accumulation/ablation) rate
108 :Standard name: ``land_ice_surface_specific_mass_balance_flux``
109
110 #. ``cts``
111
112 :Units: 1
113 :Description: cts = E/E_s(p), so cold-temperate transition surface is at cts = 1
114
115 #. ``dHdt``
116
117 :Units: m year-1
118 :Description: ice thickness rate of change
119 :Standard name: ``tendency_of_land_ice_thickness``
120
121 #. ``dbdt``
122
123 :Units: mm year-1
124 :Description: bedrock uplift rate
125 :Standard name: ``tendency_of_bedrock_altitude``
126
127 #. ``deviatoric_stresses``
128
129 - ``sigma_xx``
130
131 :Units: Pa
132 :Description: deviatoric stress in X direction
133
134 - ``sigma_yy``
135
136 :Units: Pa
137 :Description: deviatoric stress in Y direction
138
139 - ``sigma_xy``
140
141 :Units: Pa
142 :Description: deviatoric shear stress
143
144 #. ``diffusivity``
145
146 :Units: m2 s-1
147 :Description: diffusivity of SIA mass continuity equation
148
149 #. ``diffusivity_staggered``
150
151 - ``diffusivity_i``
152
153 :Units: m2 s-1
154 :Description: diffusivity of SIA mass continuity equation on the staggered grid (i-offset)
155
156 - ``diffusivity_j``
157
158 :Units: m2 s-1
159 :Description: diffusivity of SIA mass continuity equation on the staggered grid (j-offset)
160
161 #. ``effbwp``
162
163 :Units: Pa
164 :Description: effective pressure of transportable water in subglacial layer (overburden pressure minus water pressure)
165
166 #. ``effective_air_temp``
167
168 :Units: Kelvin
169 :Description: effective mean-annual near-surface air temperature
170
171 #. ``effective_precipitation``
172
173 :Units: kg m-2 year-1
174 :Description: effective precipitation rate
175 :Standard name: ``precipitation_flux``
176
177 #. ``effective_viscosity``
178
179 :Units: kPascal second
180 :Description: effective viscosity of ice
181
182 #. ``effective_water_velocity``
183
184 - ``u_effective_water_velocity``
185
186 :Units: m day-1
187 :Description: x-component of the effective water velocity in the steady-state hydrology model
188
189 - ``v_effective_water_velocity``
190
191 :Units: m day-1
192 :Description: y-component of the effective water velocity in the steady-state hydrology model
193
194 #. ``eigen_calving_rate``
195
196 :Units: m year-1
197 :Description: horizontal calving rate due to eigen-calving
198
199 #. ``elastic_bed_displacement``
200
201 :Units: meters
202 :Description: elastic part of the displacement in the Lingle-Clark bed deformation model; see :cite:`BLKfastearth`
203
204 #. ``enthalpy``
205
206 :Units: J kg-1
207 :Description: ice enthalpy (includes sensible heat, latent heat, pressure)
208
209 #. ``enthalpybase``
210
211 :Units: J kg-1
212 :Description: ice enthalpy at the base of ice
213
214 #. ``enthalpysurf``
215
216 :Units: J kg-1
217 :Description: ice enthalpy at 1m below the ice surface
218
219 #. ``firn_depth``
220
221 :Units: m
222 :Description: firn cover depth
223
224 #. ``flux``
225
226 - ``uflux``
227
228 :Units: m2 year-1
229 :Description: Vertically integrated horizontal flux of ice in the X direction
230
231 - ``vflux``
232
233 :Units: m2 year-1
234 :Description: Vertically integrated horizontal flux of ice in the Y direction
235
236 #. ``flux_divergence``
237
238 :Units: m year-1
239 :Description: flux divergence
240
241 #. ``flux_mag``
242
243 :Units: m2 year-1
244 :Description: magnitude of vertically-integrated horizontal flux of ice
245
246 #. ``flux_staggered``
247
248 :Units: m2 year-1
249 :Description: fluxes through cell interfaces (sides) on the staggered grid
250
251 #. ``frontal_melt_rate``
252
253 :Units: m day-1
254 :Description: frontal melt rate
255
256 #. ``frontal_melt_retreat_rate``
257
258 :Units: m year-1
259 :Description: retreat rate due to frontal melt
260 :Comment: takes into account what part of the front is submerged
261
262 #. ``grounding_line_flux``
263
264 :Units: kg m-2 year-1
265 :Description: grounding line flux
266 :Comment: Positive flux corresponds to mass moving from the ocean to an icy grounded area. This convention makes it easier to compare grounding line flux to the total discharge into the ocean
267
268 #. ``h_x``
269
270 - ``h_x_i``
271
272 :Units: ---
273 :Description: the x-component of the surface gradient, i-offset
274
275 - ``h_x_j``
276
277 :Units: ---
278 :Description: the x-component of the surface gradient, j-offset
279
280 #. ``h_y``
281
282 - ``h_y_i``
283
284 :Units: ---
285 :Description: the y-component of the surface gradient, i-offset
286
287 - ``h_y_j``
288
289 :Units: ---
290 :Description: the y-component of the surface gradient, j-offset
291
292 #. ``hardav``
293
294 :Units: Pa s0.333333
295 :Description: vertical average of ice hardness
296
297 #. ``hardness``
298
299 :Units: Pa s0.333333
300 :Description: ice hardness computed using the SIA flow law
301
302 #. ``heat_flux_from_bedrock``
303
304 :Units: mW m-2
305 :Description: upward geothermal flux at the top bedrock surface
306 :Standard name: ``upward_geothermal_heat_flux_at_ground_level_in_land_ice``
307 :Comment: positive values correspond to an upward flux
308
309 #. ``height_above_flotation``
310
311 :Units: m
312 :Description: ice thickness in excess of the maximum floating ice thickness
313 :Comment: shows how close to floatation the ice is at a given location
314
315 #. ``hydraulic_potential``
316
317 :Units: Pa
318 :Description: hydraulic potential in the subglacial hydrology system
319
320 #. ``hydraulic_potential_adjustment``
321
322 :Units: Pa
323 :Description: potential adjustment needed to fill sinks when computing an estimate of the steady-state hydraulic potential
324
325 #. ``hydraulic_sinks``
326
327 :Units: ---
328 :Description: map of sinks in the domain (for debugging)
329
330 #. ``ice_area_specific_volume``
331
332 :Units: m3/m2
333 :Description: ice-volume-per-area in partially-filled grid cells
334 :Comment: this variable represents the amount of ice in a partially-filled cell and not the corresponding geometry, so thinking about it as 'thickness' is not helpful
335
336 #. ``ice_base_elevation``
337
338 :Units: m
339 :Description: ice bottom surface elevation
340
341 #. ``ice_margin_pressure_difference``
342
343 :Units: Pa m
344 :Description: vertically-integrated pressure difference at ice margins (including calving fronts)
345
346 #. ``ice_mass``
347
348 :Units: kg
349 :Description: mass per cell
350
351 #. ``ice_surface_liquid_water_fraction``
352
353 :Units: 1
354 :Description: ice liquid water fraction at the ice surface
355
356 #. ``ice_surface_temp``
357
358 :Units: K
359 :Description: ice temperature at the top ice surface
360 :Standard name: ``temperature_at_top_of_ice_sheet_model``
361
362 #. ``lat``
363
364 :Units: degree_north
365 :Description: latitude
366 :Standard name: ``latitude``
367
368 #. ``liqfrac``
369
370 :Units: 1
371 :Description: liquid water fraction in ice (between 0 and 1)
372
373 #. ``lon``
374
375 :Units: degree_east
376 :Description: longitude
377 :Standard name: ``longitude``
378
379 #. ``mask``
380
381 :Units: ---
382 :Description: ice-type (ice-free/grounded/floating/ocean) integer mask
383
384 #. ``melange_back_pressure_fraction``
385
386 :Units: 1
387 :Description: dimensionless pressure fraction at calving fronts due to presence of melange
388
389 #. ``nuH``
390
391 - ``nuH[0]``
392
393 :Units: kPa s m
394 :Description: ice thickness times effective viscosity, i-offset
395
396 - ``nuH[1]``
397
398 :Units: kPa s m
399 :Description: ice thickness times effective viscosity, j-offset
400
401 #. ``pressure``
402
403 :Units: Pa
404 :Description: pressure in ice (hydrostatic)
405
406 #. ``rank``
407
408 :Units: 1
409 :Description: processor rank
410
411 #. ``remaining_water_thickness``
412
413 :Units: m
414 :Description: scaled water thickness in the steady state hydrology model (has no physical meaning)
415
416 #. ``schoofs_theta``
417
418 :Units: 1
419 :Description: multiplier 'theta' in Schoof's (2003) theory of bed roughness in SIA
420
421 #. ``sea_level``
422
423 :Units: meters
424 :Description: sea level elevation, relative to the geoid
425
426 #. ``sftflf``
427
428 :Units: 1
429 :Description: fraction of a grid cell covered by floating ice
430 :Standard name: ``floating_ice_shelf_area_fraction``
431
432 #. ``sftgif``
433
434 :Units: 1
435 :Description: fraction of a grid cell covered by ice (grounded or floating)
436 :Standard name: ``land_ice_area_fraction``
437
438 #. ``sftgrf``
439
440 :Units: 1
441 :Description: fraction of a grid cell covered by grounded ice
442 :Standard name: ``grounded_ice_sheet_area_fraction``
443
444 #. ``shelfbmassflux``
445
446 :Units: kg m-2 s-1
447 :Description: mass flux at the basal surface of ice shelves
448
449 #. ``shelfbtemp``
450
451 :Units: Kelvin
452 :Description: ice temperature at the basal surface of ice shelves
453
454 #. ``snow_depth``
455
456 :Units: m
457 :Description: snow cover depth (set to zero once a year)
458
459 #. ``ssa_bc_mask``
460
461 :Units: ---
462 :Description: Dirichlet boundary mask
463
464 #. ``ssa_bc_vel``
465
466 - ``u_ssa_bc``
467
468 :Units: m year-1
469 :Description: X-component of the SSA velocity boundary conditions
470
471 - ``v_ssa_bc``
472
473 :Units: m year-1
474 :Description: Y-component of the SSA velocity boundary conditions
475
476 #. ``steady_state_hydraulic_potential``
477
478 :Units: Pa
479 :Description: estimate of the steady state hydraulic potential in the steady hydrology model
480
481 #. ``strain_rates``
482
483 - ``eigen1``
484
485 :Units: s-1
486 :Description: first eigenvalue of the horizontal, vertically-integrated strain rate tensor
487
488 - ``eigen2``
489
490 :Units: s-1
491 :Description: second eigenvalue of the horizontal, vertically-integrated strain rate tensor
492
493 #. ``strainheat``
494
495 :Units: mW m-3
496 :Description: rate of strain heating in ice (dissipation heating)
497
498 #. ``subglacial_water_flux_mag``
499
500 :Units: m2 year-1
501 :Description: magnitude of the subglacial water flux
502
503 #. ``subglacial_water_input_rate``
504
505 :Units: m year-1
506 :Description: water input rate from the ice surface into the subglacial water system
507 :Comment: positive flux corresponds to water gain
508
509 #. ``surface_accumulation_flux``
510
511 :Units: kg m-2 year-1
512 :Description: accumulation (precipitation minus rain), averaged over the reporting interval
513
514 #. ``surface_accumulation_rate``
515
516 :Units: Gt year-1
517 :Description: accumulation (precipitation minus rain), averaged over the reporting interval
518
519 #. ``surface_layer_mass``
520
521 :Units: kg
522 :Description: mass of the surface layer (snow and firn)
523
524 #. ``surface_layer_thickness``
525
526 :Units: meters
527 :Description: thickness of the surface layer (snow and firn)
528
529 #. ``surface_melt_flux``
530
531 :Units: kg m-2 year-1
532 :Description: surface melt, averaged over the reporting interval
533 :Standard name: ``surface_snow_and_ice_melt_flux``
534
535 #. ``surface_melt_rate``
536
537 :Units: Gt year-1
538 :Description: surface melt, averaged over the reporting interval
539
540 #. ``surface_runoff_flux``
541
542 :Units: kg m-2 year-1
543 :Description: surface runoff, averaged over the reporting interval
544 :Standard name: ``surface_runoff_flux``
545
546 #. ``surface_runoff_rate``
547
548 :Units: Gt year-1
549 :Description: surface runoff, averaged over the reporting interval
550
551 #. ``taub``
552
553 - ``taub_x``
554
555 :Units: Pa
556 :Description: X-component of the shear stress at the base of ice
557 :Comment: this field is purely diagnostic (not used by the model)
558
559 - ``taub_y``
560
561 :Units: Pa
562 :Description: Y-component of the shear stress at the base of ice
563 :Comment: this field is purely diagnostic (not used by the model)
564
565 #. ``taub_mag``
566
567 :Units: Pa
568 :Description: magnitude of the basal shear stress at the base of ice
569 :Standard name: ``land_ice_basal_drag``
570 :Comment: this field is purely diagnostic (not used by the model)
571
572 #. ``tauc``
573
574 :Units: Pa
575 :Description: yield stress for basal till (plastic or pseudo-plastic model)
576
577 #. ``taud``
578
579 - ``taud_x``
580
581 :Units: Pa
582 :Description: X-component of the driving shear stress at the base of ice
583 :Comment: this is the driving stress used by the SSA solver
584
585 - ``taud_y``
586
587 :Units: Pa
588 :Description: Y-component of the driving shear stress at the base of ice
589 :Comment: this is the driving stress used by the SSA solver
590
591 #. ``taud_mag``
592
593 :Units: Pa
594 :Description: magnitude of the driving shear stress at the base of ice
595 :Comment: this is the magnitude of the driving stress used by the SSA solver
596
597 #. ``tauxz``
598
599 :Units: Pa
600 :Description: shear stress xz component (in shallow ice approximation SIA)
601
602 #. ``tauyz``
603
604 :Units: Pa
605 :Description: shear stress yz component (in shallow ice approximation SIA)
606
607 #. ``temp``
608
609 :Units: K
610 :Description: ice temperature
611 :Standard name: ``land_ice_temperature``
612
613 #. ``temp_pa``
614
615 :Units: deg_C
616 :Description: pressure-adjusted ice temperature (degrees above pressure-melting point)
617
618 #. ``tempbase``
619
620 :Units: K
621 :Description: ice temperature at the base of ice
622 :Standard name: ``land_ice_basal_temperature``
623
624 #. ``tempicethk``
625
626 :Units: m
627 :Description: temperate ice thickness (total column content)
628
629 #. ``tempicethk_basal``
630
631 :Units: m
632 :Description: thickness of the basal layer of temperate ice
633
634 #. ``temppabase``
635
636 :Units: Celsius
637 :Description: pressure-adjusted ice temperature at the base of ice
638
639 #. ``tempsurf``
640
641 :Units: K
642 :Description: ice temperature at 1m below the ice surface
643 :Standard name: ``temperature_at_ground_level_in_snow_or_firn``
644
645 #. ``tendency_of_ice_amount``
646
647 :Units: kg m-2 year-1
648 :Description: rate of change of the ice amount
649
650 #. ``tendency_of_ice_amount_due_to_basal_mass_flux``
651
652 :Units: kg m-2 year-1
653 :Description: average basal mass flux over reporting interval
654 :Comment: positive flux corresponds to ice gain
655
656 #. ``tendency_of_ice_amount_due_to_calving``
657
658 :Units: kg m-2 year-1
659 :Description: calving flux
660 :Standard name: ``land_ice_specific_mass_flux_due_to_calving``
661 :Comment: positive flux corresponds to ice gain
662
663 #. ``tendency_of_ice_amount_due_to_conservation_error``
664
665 :Units: kg m-2 year-1
666 :Description: average mass conservation error flux over reporting interval
667 :Comment: positive flux corresponds to ice gain
668
669 #. ``tendency_of_ice_amount_due_to_discharge``
670
671 :Units: kg m-2 year-1
672 :Description: discharge flux (calving, frontal melt, forced retreat)
673 :Standard name: ``land_ice_specific_mass_flux_due_to_calving_and_ice_front_melting``
674 :Comment: positive flux corresponds to ice gain
675
676 #. ``tendency_of_ice_amount_due_to_flow``
677
678 :Units: kg m-2 year-1
679 :Description: rate of change of ice amount due to flow
680 :Comment: positive flux corresponds to ice gain
681
682 #. ``tendency_of_ice_amount_due_to_surface_mass_flux``
683
684 :Units: kg m-2 year-1
685 :Description: average surface mass flux over reporting interval
686 :Standard name: ``land_ice_surface_specific_mass_balance_flux``
687 :Comment: positive flux corresponds to ice gain
688
689 #. ``tendency_of_ice_mass``
690
691 :Units: Gt year-1
692 :Description: rate of change of the ice mass
693
694 #. ``tendency_of_ice_mass_due_to_basal_mass_flux``
695
696 :Units: Gt year-1
697 :Description: average basal mass flux over reporting interval
698 :Standard name: ``tendency_of_land_ice_mass_due_to_basal_mass_balance``
699 :Comment: positive flux corresponds to ice gain
700
701 #. ``tendency_of_ice_mass_due_to_calving``
702
703 :Units: Gt year-1
704 :Description: calving flux
705 :Comment: positive flux corresponds to ice gain
706
707 #. ``tendency_of_ice_mass_due_to_conservation_error``
708
709 :Units: Gt year-1
710 :Description: average mass conservation error flux over reporting interval
711 :Comment: positive flux corresponds to ice gain
712
713 #. ``tendency_of_ice_mass_due_to_discharge``
714
715 :Units: Gt year-1
716 :Description: discharge flux (calving, frontal melt, forced retreat)
717 :Comment: positive flux corresponds to ice gain
718
719 #. ``tendency_of_ice_mass_due_to_flow``
720
721 :Units: Gt year-1
722 :Description: rate of change of ice mass due to flow
723 :Comment: positive flux corresponds to ice gain
724
725 #. ``tendency_of_ice_mass_due_to_surface_mass_flux``
726
727 :Units: Gt year-1
728 :Description: average surface mass flux over reporting interval
729 :Comment: positive flux corresponds to ice gain
730
731 #. ``tendency_of_subglacial_water_mass``
732
733 :Units: Gt year-1
734 :Description: rate of change of the total mass of subglacial water
735 :Comment: positive flux corresponds to water gain
736
737 #. ``tendency_of_subglacial_water_mass_at_domain_boundary``
738
739 :Units: Gt year-1
740 :Description: subglacial water flux at domain boundary (in regional model configurations)
741 :Comment: positive flux corresponds to water gain
742
743 #. ``tendency_of_subglacial_water_mass_at_grounded_margins``
744
745 :Units: Gt year-1
746 :Description: subglacial water flux at grounded ice margins
747 :Comment: positive flux corresponds to water gain
748
749 #. ``tendency_of_subglacial_water_mass_at_grounding_line``
750
751 :Units: Gt year-1
752 :Description: subglacial water flux at grounding lines
753 :Comment: positive flux corresponds to water gain
754
755 #. ``tendency_of_subglacial_water_mass_due_to_conservation_error``
756
757 :Units: Gt year-1
758 :Description: subglacial water flux due to conservation error (mass added to preserve non-negativity)
759 :Comment: positive flux corresponds to water gain
760
761 #. ``tendency_of_subglacial_water_mass_due_to_flow``
762
763 :Units: Gt year-1
764 :Description: rate of change subglacial water mass due to lateral flow
765 :Comment: positive flux corresponds to water gain
766
767 #. ``tendency_of_subglacial_water_mass_due_to_input``
768
769 :Units: Gt year-1
770 :Description: subglacial water flux due to input
771 :Comment: positive flux corresponds to water gain
772
773 #. ``thickness_calving_threshold``
774
775 :Units: m
776 :Description: threshold used by the 'calving at threshold' calving method
777
778 #. ``thk``
779
780 :Units: m
781 :Description: land ice thickness
782 :Standard name: ``land_ice_thickness``
783
784 #. ``thksmooth``
785
786 :Units: m
787 :Description: thickness relative to smoothed bed elevation in Schoof's (2003) theory of bed roughness in SIA
788
789 #. ``tillphi``
790
791 :Units: degrees
792 :Description: friction angle for till under grounded ice sheet
793
794 #. ``tillwat``
795
796 :Units: m
797 :Description: effective thickness of subglacial water stored in till
798
799 #. ``topg``
800
801 :Units: m
802 :Description: bedrock surface elevation
803 :Standard name: ``bedrock_altitude``
804
805 #. ``topg_sl_adjusted``
806
807 :Units: meters
808 :Description: sea-level adjusted bed topography (zero is at sea level)
809
810 #. ``topgsmooth``
811
812 :Units: m
813 :Description: smoothed bed elevation in Schoof's (2003) theory of bed roughness in SIA
814
815 #. ``usurf``
816
817 :Units: m
818 :Description: ice top surface elevation
819 :Standard name: ``surface_altitude``
820
821 #. ``uvel``
822
823 :Units: m year-1
824 :Description: horizontal velocity of ice in the X direction
825 :Standard name: ``land_ice_x_velocity``
826
827 #. ``velbar``
828
829 - ``ubar``
830
831 :Units: m year-1
832 :Description: vertical mean of horizontal ice velocity in the X direction
833 :Standard name: ``land_ice_vertical_mean_x_velocity``
834
835 - ``vbar``
836
837 :Units: m year-1
838 :Description: vertical mean of horizontal ice velocity in the Y direction
839 :Standard name: ``land_ice_vertical_mean_y_velocity``
840
841 #. ``velbar_mag``
842
843 :Units: m year-1
844 :Description: magnitude of vertically-integrated horizontal velocity of ice
845
846 #. ``velbase``
847
848 - ``uvelbase``
849
850 :Units: m year-1
851 :Description: x-component of the horizontal velocity of ice at the base of ice
852 :Standard name: ``land_ice_basal_x_velocity``
853
854 - ``vvelbase``
855
856 :Units: m year-1
857 :Description: y-component of the horizontal velocity of ice at the base of ice
858 :Standard name: ``land_ice_basal_y_velocity``
859
860 #. ``velbase_mag``
861
862 :Units: m year-1
863 :Description: magnitude of horizontal velocity of ice at base of ice
864
865 #. ``velsurf``
866
867 - ``uvelsurf``
868
869 :Units: m year-1
870 :Description: x-component of the horizontal velocity of ice at ice surface
871 :Standard name: ``land_ice_surface_x_velocity``
872
873 - ``vvelsurf``
874
875 :Units: m year-1
876 :Description: y-component of the horizontal velocity of ice at ice surface
877 :Standard name: ``land_ice_surface_y_velocity``
878
879 #. ``velsurf_mag``
880
881 :Units: m year-1
882 :Description: magnitude of horizontal velocity of ice at ice surface
883
884 #. ``viscous_bed_displacement``
885
886 :Units: meters
887 :Description: bed displacement in the viscous half-space bed deformation model; see BuelerLingleBrown
888
889 #. ``vonmises_calving_rate``
890
891 :Units: m year-1
892 :Description: horizontal calving rate due to von Mises calving
893
894 #. ``vonmises_calving_threshold``
895
896 :Units: Pa
897 :Description: threshold used by the 'von Mises' calving method
898
899 #. ``vonmises_stress``
900
901 :Units: Pascal
902 :Description: tensile von Mises stress
903
904 #. ``vvel``
905
906 :Units: m year-1
907 :Description: horizontal velocity of ice in the Y direction
908 :Standard name: ``land_ice_y_velocity``
909
910 #. ``wallmelt``
911
912 :Units: m year-1
913 :Description: wall melt into subglacial hydrology layer from (turbulent) dissipation of energy in transportable water
914
915 #. ``wvel``
916
917 :Units: m year-1
918 :Description: vertical velocity of ice, relative to geoid
919
920 #. ``wvel_rel``
921
922 :Units: m year-1
923 :Description: vertical velocity of ice, relative to base of ice directly below
924
925 #. ``wvelbase``
926
927 :Units: m year-1
928 :Description: vertical velocity of ice at the base of ice, relative to the geoid
929 :Standard name: ``land_ice_basal_upward_velocity``
930
931 #. ``wvelsurf``
932
933 :Units: m year-1
934 :Description: vertical velocity of ice at ice surface, relative to the geoid
935 :Standard name: ``land_ice_surface_upward_velocity``
936
937 .. _sec-ts_vars:
938
939 Scalar time-series
940 ------------------
941
942 #. ``basal_mass_flux_floating``
943
944 :Units: Gt year-1
945 :Description: total sub-shelf ice flux
946 :Standard name: ``tendency_of_land_ice_mass_due_to_basal_mass_balance``
947 :Comment: positive means ice gain
948
949 #. ``basal_mass_flux_grounded``
950
951 :Units: Gt year-1
952 :Description: total over grounded ice domain of basal mass flux
953 :Standard name: ``tendency_of_land_ice_mass_due_to_basal_mass_balance``
954 :Comment: positive means ice gain
955
956 #. ``dt``
957
958 :Units: year
959 :Description: mass continuity time step
960
961 #. ``grounding_line_flux``
962
963 :Units: Gt year-1
964 :Description: total ice flux across the grounding line
965 :Comment: negative flux corresponds to ice loss into the ocean
966
967 #. ``ice_area_glacierized``
968
969 :Units: m2
970 :Description: glacierized area
971
972 #. ``ice_area_glacierized_cold_base``
973
974 :Units: m2
975 :Description: glacierized area where basal ice is cold
976
977 #. ``ice_area_glacierized_floating``
978
979 :Units: m2
980 :Description: area of ice shelves in glacierized areas
981 :Standard name: ``floating_ice_shelf_area``
982
983 #. ``ice_area_glacierized_grounded``
984
985 :Units: m2
986 :Description: area of grounded ice in glacierized areas
987 :Standard name: ``grounded_ice_sheet_area``
988
989 #. ``ice_area_glacierized_temperate_base``
990
991 :Units: m2
992 :Description: glacierized area where basal ice is temperate
993
994 #. ``ice_enthalpy``
995
996 :Units: J
997 :Description: enthalpy of the ice, including seasonal cover
998
999 #. ``ice_enthalpy_glacierized``
1000
1001 :Units: J
1002 :Description: enthalpy of the ice in glacierized areas
1003
1004 #. ``ice_mass``
1005
1006 :Units: kg
1007 :Description: mass of the ice, including seasonal cover
1008 :Standard name: ``land_ice_mass``
1009
1010 #. ``ice_mass_glacierized``
1011
1012 :Units: kg
1013 :Description: mass of the ice in glacierized areas
1014
1015 #. ``ice_volume``
1016
1017 :Units: m3
1018 :Description: volume of the ice, including seasonal cover
1019
1020 #. ``ice_volume_cold``
1021
1022 :Units: m3
1023 :Description: volume of cold ice, including seasonal cover
1024
1025 #. ``ice_volume_glacierized``
1026
1027 :Units: m3
1028 :Description: volume of the ice in glacierized areas
1029
1030 #. ``ice_volume_glacierized_cold``
1031
1032 :Units: m3
1033 :Description: volume of cold ice in glacierized areas
1034
1035 #. ``ice_volume_glacierized_floating``
1036
1037 :Units: m3
1038 :Description: volume of ice shelves in glacierized areas
1039
1040 #. ``ice_volume_glacierized_grounded``
1041
1042 :Units: m3
1043 :Description: volume of grounded ice in glacierized areas
1044
1045 #. ``ice_volume_glacierized_temperate``
1046
1047 :Units: m3
1048 :Description: volume of temperate ice in glacierized areas
1049
1050 #. ``ice_volume_temperate``
1051
1052 :Units: m3
1053 :Description: volume of temperate ice, including seasonal cover
1054
1055 #. ``limnsw``
1056
1057 :Units: kg
1058 :Description: mass of the ice not displacing sea water
1059 :Standard name: ``land_ice_mass_not_displacing_sea_water``
1060
1061 #. ``liquified_ice_flux``
1062
1063 :Units: m3 / year
1064 :Description: rate of ice loss due to liquefaction, averaged over the reporting interval
1065 :Comment: positive means ice loss
1066
1067 #. ``max_diffusivity``
1068
1069 :Units: m2 s-1
1070 :Description: maximum diffusivity
1071
1072 #. ``max_hor_vel``
1073
1074 :Units: m year-1
1075 :Description: maximum abs component of horizontal ice velocity over grid in last time step during time-series reporting interval
1076
1077 #. ``sea_level_rise_potential``
1078
1079 :Units: m
1080 :Description: the sea level rise that would result if all the ice were melted
1081
1082 #. ``surface_accumulation_rate``
1083
1084 :Units: kg year-1
1085 :Description: surface accumulation rate (PDD model)
1086
1087 #. ``surface_melt_rate``
1088
1089 :Units: kg year-1
1090 :Description: surface melt rate (PDD model)
1091
1092 #. ``surface_runoff_rate``
1093
1094 :Units: kg year-1
1095 :Description: surface runoff rate (PDD model)
1096
1097 #. ``tendency_of_ice_mass``
1098
1099 :Units: Gt year-1
1100 :Description: rate of change of the mass of ice, including seasonal cover
1101
1102 #. ``tendency_of_ice_mass_due_to_basal_mass_flux``
1103
1104 :Units: Gt year-1
1105 :Description: total over ice domain of bottom surface ice mass flux
1106 :Standard name: ``tendency_of_land_ice_mass_due_to_basal_mass_balance``
1107 :Comment: positive means ice gain
1108
1109 #. ``tendency_of_ice_mass_due_to_calving``
1110
1111 :Units: Gt year-1
1112 :Description: calving flux
1113 :Standard name: ``tendency_of_land_ice_mass_due_to_calving``
1114 :Comment: positive means ice gain
1115
1116 #. ``tendency_of_ice_mass_due_to_conservation_error``
1117
1118 :Units: Gt year-1
1119 :Description: total numerical flux needed to preserve non-negativity of ice thickness
1120 :Comment: positive means ice gain
1121
1122 #. ``tendency_of_ice_mass_due_to_discharge``
1123
1124 :Units: Gt year-1
1125 :Description: discharge flux (frontal melt, calving, forced retreat)
1126 :Standard name: ``tendency_of_land_ice_mass_due_to_calving_and_ice_front_melting``
1127 :Comment: positive means ice gain
1128
1129 #. ``tendency_of_ice_mass_due_to_flow``
1130
1131 :Units: Gt year-1
1132 :Description: rate of change of the mass of ice due to flow (i.e. prescribed ice thickness)
1133
1134 #. ``tendency_of_ice_mass_due_to_surface_mass_flux``
1135
1136 :Units: Gt year-1
1137 :Description: total over ice domain of top surface ice mass flux
1138 :Standard name: ``tendency_of_land_ice_mass_due_to_surface_mass_balance``
1139 :Comment: positive means ice gain
1140
1141 #. ``tendency_of_ice_mass_glacierized``
1142
1143 :Units: Gt year-1
1144 :Description: rate of change of the ice mass in glacierized areas
1145
1146 #. ``tendency_of_ice_volume``
1147
1148 :Units: m3 year-1
1149 :Description: rate of change of the ice volume, including seasonal cover
1150
1151 #. ``tendency_of_ice_volume_glacierized``
1152
1153 :Units: m3 year-1
1154 :Description: rate of change of the ice volume in glacierized areas