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#25 (May 8, 2026, 12:55:00 PM)

CHG: add default emissiving to GEMB and add option 3 for te change with melt present

95945328+NJSchlegel at 1:22 PM 5/1/26

NEW: viscoussampling parameter allows greensfunctions in the grd core to be sampled non-linearly in time, speeding up runs with many time steps

lambert.caron at 3:10 PM 5/1/26

viscoussampling better default value

lambert.caron at 3:23 PM 5/1/26

CHG: add GEMB mapping with neighbors for interpolation

95945328+NJSchlegel at 4:28 PM 5/1/26

CHG: add static cast to GEMB mapping neighbor indices

95945328+NJSchlegel at 4:56 PM 5/1/26

CHG: add static cast to GEMB double to int mapping neighbor indices

95945328+NJSchlegel at 6:04 PM 5/1/26

CHG: GEMB mapping casting check

95945328+NJSchlegel at 6:44 PM 5/1/26

CHG: Fix indent in interpISMIP7AntarcticaOcn.m.

inwoo0415 at 10:25 PM 5/1/26

NEW: Initialize interpISMIP7AntarcticaSMB.m function.

inwoo0415 at 10:25 PM 5/1/26

CHG: add default emissiving to GEMB and add option 3 for te change with melt present

inwoo0415 at 10:30 PM 5/1/26

CHG: Add a new feature to basalforcingsismip7. Introduce the islocal parameter; however, its definition has not yet been determined.

inwoo0415 at 10:42 PM 5/1/26

CHG: plotmodel.py - Enable to control axes pad.

inwoo0415 at 10:55 PM 5/1/26

CHG: make GEMB mapped neighbors ints

95945328+NJSchlegel at 11:27 AM 5/2/26

CHG: merge with main enum

95945328+NJSchlegel at 11:33 AM 5/2/26

CHG: merge with main enum

95945328+NJSchlegel at 11:34 AM 5/2/26

Use get method to avoid square brackets (treated as quotes by Autom4ke) entirely.

34657535+TidbitSoftware at 1:34 PM 5/2/26

Correcting another Python lib/header discovery command

34657535+TidbitSoftware at 1:38 PM 5/2/26

CHG: updated date in copyright

mathieu.morlighem at 2:12 PM 5/3/26

CHG: style fix - removed commas at the end of if/for/while

mathieu.morlighem at 2:15 PM 5/3/26

CHG: fixed some typos

mathieu.morlighem at 2:24 PM 5/3/26

CHG: trying to fix AD

mathieu.morlighem at 6:24 PM 5/3/26

CHG: testing adThresh in GEMB nightly 258

95945328+NJSchlegel at 8:47 AM 5/4/26

CHG: Test eIdx settings in GEMB test 258

95945328+NJSchlegel at 9:22 AM 5/4/26

CHG: GEMB mapping fix AD and add mapping test if eIdx

95945328+NJSchlegel at 9:45 AM 5/4/26

CHG: GEMB lower tol for eIdx

95945328+NJSchlegel at 10:06 AM 5/4/26

CHG: clarify GEMB class mapping comments

95945328+NJSchlegel at 10:41 AM 5/4/26

CHG: fetch lon and lat when using SMBemulator

55120383+yinmin-liu at 2:19 PM 5/4/26

CHG: updated variable Enum names of SMB emulator

55120383+yinmin-liu at 2:22 PM 5/4/26

CHG: changed mass balance scaling to day2second

55120383+yinmin-liu at 2:22 PM 5/4/26

Adjusted tolerances

34657535+TidbitSoftware at 6:48 PM 5/4/26

NEW: added C++ version of M1QN3, more to come

mathieu.morlighem at 4:27 AM 5/5/26

CHG: getting rid of all gotos

mathieu.morlighem at 4:59 AM 5/5/26

NEW: now using C++ implementation of m1qn3 instead of external package

mathieu.morlighem at 5:01 AM 5/5/26

CHG: fixed m1qn3 so that it gives the same results as fortran

Mathieu Morlighem at 11:39 AM 5/5/26

CHG: now AD results should be identical as before. One more bug to resolve

Mathieu Morlighem at 5:06 AM 5/6/26

CHG: relaxed tolerances

mathieu.morlighem at 6:02 AM 5/6/26

CHG: ignoring some more files

Mathieu Morlighem at 7:09 AM 5/6/26

CHG: VolumeAboveFloatation.m now calls function HeightAboveFloatation(). Cleanup of some logic and documentation, and allow flags to be used independently from transient time step. NEW: HeightAboveFloatation.m returns the per-element height above floatation over the entire domain defined by ice levelset. Together, the output is not changed, but is more flexible and allows HAF to be easily returned for seeing contributions (and changes) to VAF on the elements.

benjamingetraer at 5:27 AM 5/7/26

CHG: fixed if/else wrong logic when intrusion is on

mathieu.morlighem at 8:27 AM 5/7/26

BUG: fixed intrusion/stabilization bug that only showed up on mac

mathieu.morlighem at 8:41 AM 5/7/26

CHG: added mac tests back now that bug is fixed

mathieu.morlighem at 9:02 AM 5/7/26

CHG: GEMB add option to map using xy cooordinates

95945328+NJSchlegel at 4:59 PM 5/7/26

CHG: GEMB mapping fix xy call for AD

95945328+NJSchlegel at 5:21 PM 5/7/26

CHG: GEMB matlab fix comments

95945328+NJSchlegel at 5:28 PM 5/7/26

NEW: m1qn3 now returns the BEST X/G that it found

mathieu.morlighem at 5:50 AM 5/8/26

NEW: added support for 3.25

mathieu.morlighem at 5:50 AM 5/8/26

#24 (May 1, 2026, 12:55:00 PM)

Update sea-level barystatic contribution handling

lambert.caron at 2:53 PM 4/21/26

Fix sea-level change barystatic finalization

lambert.caron at 5:39 PM 4/24/26

CHG: some more fixes from Claude:

mathieu.morlighem at 1:01 AM 4/25/26

CHG: adding this param back, although there is no constructor etc

mathieu.morlighem at 1:03 AM 4/25/26

CHG: a lot of people get confused and run ./configure, forgetting .sh. Added a check that at least --prefix is provided as a safety measure to help users figure out their mistake

Mathieu Morlighem at 6:37 PM 4/27/26

CHG: fixed some bugs that Claude found

mathieu.morlighem at 10:02 AM 4/28/26

CHG: pull versions from previous BedMachine

Mathieu Morlighem at 11:31 AM 4/28/26

CHG: Claude found some mistakes that are now corrected

mathieu.morlighem at 9:53 AM 4/29/26

Viscoelastic NR archive update, + test2011 realigned to consistent maxiter

lambert.caron at 11:13 AM 4/29/26

CHG: basalstress.m - cleaned up some code and improved documentation.

benjamingetraer at 10:42 AM 4/29/26

NEW: effectivepressure.m - calculate effective pressure according to md.friction.coupling

benjamingetraer at 10:43 AM 4/29/26

CHG: basalstress.m - cleaned up some code and improved documentation.

benjamingetraer at 11:00 AM 4/29/26

NEW: effectivepressure.m - calculate effective pressure according to md.friction.coupling

benjamingetraer at 11:04 AM 4/29/26

restore basalstress from upstream

benjamingetraer at 11:13 AM 4/29/26

CHG: improve clarity and documentation of basalstress.m

benjamingetraer at 12:26 PM 4/29/26

CHG: basalstress.m now uses effectivepressure.m to calculate effective pressure.

benjamingetraer at 12:57 PM 4/29/26

CHG: typos in effectivepressure.m header

benjamingetraer at 1:00 PM 4/29/26

CHG: bug fix - move check for md.friction.coupling from basalstress.m to effectivepressure.m, move effectivepressure() call in basalstress.m to within the switch/case statements, ie do not call effective pressure at all for frictionweertman.

benjamingetraer at 7:57 PM 4/29/26

BUG: MATLAB's mexPrintf is not thread safe, do not pring anything within a thread

Mathieu Morlighem at 8:53 AM 4/30/26

Autom4ke collapses square brackets

34657535+TidbitSoftware at 10:11 AM 4/30/26

CHG:completed the 12 inputs MAR-IA SMB emulator

55120383+yinmin-liu at 1:06 PM 4/30/26

CHG: Synchronize MATLAB and Python implementations for basalstress and effectivepressure.

inwoo0415 at 1:28 AM 5/1/26

#23 (Apr 24, 2026, 12:55:00 PM)

BUG: fixing bugs found by claude

mathieu.morlighem at 4:22 PM 4/17/26

BUG: fixing bugs found by claude

mathieu.morlighem at 6:11 PM 4/17/26

Updated archives

34657535+TidbitSoftware at 12:35 AM 4/18/26

BUG: fixed some bugs in sea level core

mathieu.morlighem at 11:37 AM 4/19/26

BUG: fixed a few problems reported by Claude

mathieu.morlighem at 1:23 PM 4/20/26

BUG: fixed some emulator compiling issues.

55120383+yinmin-liu at 2:52 PM 4/20/26

fix: check verbose flag before printing to terminal

daniel.abele at 5:34 AM 4/21/26

BUG: fixed segmentation errors when constructing and deconstructing EmulatorParam

55120383+yinmin-liu at 5:52 PM 4/21/26

BUG: the friction emulator should only be instantiated in case 20

55120383+yinmin-liu at 12:04 PM 4/22/26

ken.mankoff at 4:13 PM 4/22/26

ken.mankoff at 4:13 PM 4/22/26

NEW: preparing a ML based SMB calculator

55120383+yinmin-liu at 2:24 PM 4/23/26

CHG: basalforcingsismip7.py - Add structtoobj.

inwoo0415 at 8:00 PM 4/23/26

CHG: interpISMIP7AntarcticaOcn.py - Add remote 'simba41' machine.

inwoo0415 at 8:00 PM 4/23/26

CHG: Update ISMIP7 basalforcings: Add "delta_t" for calibrating thermal forcing depending on basin. Fix interpISMIP7AntarcticaOcn for loading thermal forcing and salinity of GCM.

inwoo0415 at 8:34 PM 4/23/26

CHG: Synchronize Matlab > Python "displayunsed" in pairoptions.py.

inwoo0415 at 9:17 PM 4/23/26

#22 (Apr 17, 2026, 12:55:00 PM)

CHG: collapse SMBpddFast, and inherit fields

Mathieu Morlighem at 2:16 PM 4/10/26

CHG: save model using v6 for faster performance if <2Gb

Mathieu Morlighem at 2:17 PM 4/10/26

CHG: provide input filename to marshall

Mathieu Morlighem at 2:35 PM 4/10/26

noreply at 3:31 PM 4/10/26

CHG: passing filename to BuildQueueingScript, hopefully I did not break anything... stay tuned

mathieu.morlighem at 8:08 PM 4/10/26

CHG: BuildQueueScript now takes filename as input argument

mathieu.morlighem at 9:09 PM 4/10/26

CHG: fixed windows

mathieu.morlighem at 9:11 PM 4/10/26

CHG: added CLAUDE.md to help Claude Code familiarize itself with ISSM

mathieu.morlighem at 5:11 AM 4/11/26

CHG: Synchronize Matlab > Python: class "basalforcingsismip7".

inwoo0415 at 2:27 AM 4/12/26

CHG: basalforcingsismip7.m - Add TODO note for indicating that specific variables are underdevelopment.

inwoo0415 at 2:44 AM 4/12/26

CHG: interpISMIP7AntarcticaOcn.m - Fix bugs.

inwoo0415 at 2:44 AM 4/12/26

CHG: Fix minor - add missing module in basalforcingspico.

inwoo0415 at 7:11 AM 4/12/26

CHG: removing code that is never used and had a nasty leak, thanks Claude

mathieu.morlighem at 6:39 PM 4/12/26

NEW: preparing EmulatorParam param for ML

mathieu.morlighem at 5:48 AM 4/13/26

CHG: updating packages to latest version

mathieu.morlighem at 5:48 AM 4/13/26

build: add pybind11 configure options for emulator integration

yinmin at 6:56 AM 4/13/26

NEW: only compile Emulator parameter if PyBind is on

mathieu.morlighem at 5:44 PM 4/13/26

CHG: fixing some glaring bugs, caught by claude

mathieu.morlighem at 5:44 PM 4/13/26

CHG: preparing friction emulator for Yinmin

mathieu.morlighem at 7:20 AM 4/14/26

CHG: updating friction emulator and pybind11 configurations

55120383+yinmin-liu at 3:11 PM 4/14/26

CHG: finished friction emulator and uploaded checkpoint file for testing

55120383+yinmin-liu at 8:53 AM 4/15/26

CHG: cleanup stress balance code

mathieu.morlighem at 6:55 AM 4/16/26

CHG: testing if code is dead

mathieu.morlighem at 6:57 AM 4/16/26

CHG: code is not dead, reverting

mathieu.morlighem at 7:39 AM 4/16/26

CHG: fixed some problems reported by Claude

mathieu.morlighem at 7:56 AM 4/16/26

#21 (Apr 10, 2026, 12:55:00 PM)

CHG: if loadonly=1, do not check consistency or anything else

Mathieu Morlighem at 3:34 PM 4/3/26

CHG: need to build runtimename first

Mathieu Morlighem at 3:37 PM 4/3/26

CHG: better formating of outlog and errlog in md

Mathieu Morlighem at 6:25 AM 4/5/26

CHG: plot/plotmodel.py - Flattening axes and control space between axes.

inwoo0415 at 9:40 PM 4/5/26

tiny printing thing

f007fk5 at 10:30 AM 4/6/26

Update cfsurfacelogvel.m

noreply at 10:32 AM 4/6/26

CHG: silent hostname on andes

Mathieu Morlighem at 2:24 PM 4/6/26

CHG: skip empty lines in errlog, otherwise we get a WARNING all the time because empty quotes is not empty in MATLAB

Mathieu Morlighem at 4:51 PM 4/6/26

CHG: Fix bugs and improve HydrologyPrescribeAnalysis:

inwoo0415 at 1:21 AM 4/7/26

CHG: fixing AD after Inwoo's commit

mathieu.morlighem at 1:39 PM 4/7/26

CHG: reverting support for versions earlier than 2020b

mathieu.morlighem at 9:09 PM 4/7/26

CHG: better checks for sicopolis PDD + allow for collapse

Mathieu Morlighem at 2:26 PM 4/8/26

CHG: new vik colorbar useful for color blind people

Mathieu Morlighem at 2:27 PM 4/8/26

CHG: updating tag number

mathieu.morlighem at 4:09 PM 4/8/26

CHG: loadresultsfromdisk.m – Revert formatting of outlog and errlog for MATLAB versions earlier than R2020b.

inwoo0415 at 8:03 PM 4/8/26

CHG: HydrologyShakti – Add initialization of EffectivePressureEnum in the UpdateElements section. When EffectivePressure is included in md.hydrology.requested_outputs, an error occurs while writing EffectivePressure. This fix resolves the issue; however, it is unclear whether this line is truly necessary.

inwoo0415 at 8:07 PM 4/8/26

CHG: updating version number

mathieu.morlighem at 9:39 AM 4/9/26

CHG: adding Bed as default output of solidearth model

Mathieu Morlighem at 9:51 AM 4/9/26

CHG: adding ability to collapse linear basal forcings

Mathieu Morlighem at 9:51 AM 4/9/26

CHG: adding Bed as default output of solidearth model

Mathieu Morlighem at 9:52 AM 4/9/26

CHG: always symlink when running on local machine

mathieu.morlighem at 10:15 PM 4/9/26

CHG: fixing double comma

mathieu.morlighem at 10:31 PM 4/9/26

CHG: better explanation of slope, which works for any field

mathieu.morlighem at 9:48 AM 4/10/26

#20 (Apr 3, 2026, 12:55:00 PM)

NEW: New feature `hydrologyprescribe.m` (`hydrologyprescribe.py`). This module enables the hydraulic head to be prescribed from an external subglacial hydrology model. md.friction.coupling=3 uses a fixed effective pressure; however, for century-scale projections, the effective pressure should vary over time, as `md.geometry.thickness` changes and affects the effective pressure. Therefore, this module supports `md.friction.coupling=4`, which computes the effective pressure based on the changing ice thickness and fixed subglacial hydraulic head.

inwoo0415 at 8:45 AM 3/8/26

NEW: Implement ISMIP7 sub-ice shelf forcings and associated methods in the Element and FloatingiceMeltingRatex modules. This module is not yet fully implemented, so it needs to be fixed.

inwoo0415 at 9:32 AM 3/26/26

BUG: Fix indents and bugs.

inwoo0415 at 6:33 AM 3/27/26

CHG: Synchronize "EnumDefinitions".

inwoo0415 at 6:34 AM 3/27/26

BUG: sealevelchange_core coupler count integer was not reset properly

noreply at 3:40 PM 3/27/26

CHG: Resolve conflicts.

inwoo0415 at 1:10 AM 3/28/26

CHG: Compute TotalHydrologyBasalFlux [m³ s⁻¹] at the grounding line (Shakti only).

inwoo0415 at 3:00 AM 3/29/26

CHG: Fix indents with tab.

inwoo0415 at 7:01 PM 3/31/26

BUG: Fix computing ISMIP7 basal forcings.

inwoo0415 at 7:29 PM 3/31/26

NEW: Initialize interpISMIP7AntarcticaOcn.m.

inwoo0415 at 7:31 PM 3/31/26

CHG: basalforcingsismip7.m - Add num_basins and basin_id as like ismip6. However, theses variables may not be used in future. (to be determined.)

inwoo0415 at 7:33 PM 3/31/26

CHG: use different bracket style for andes

Mathieu Morlighem at 7:10 AM 4/1/26

CHG: adding information message to warn user

Mathieu Morlighem at 7:12 AM 4/1/26

CHG: use {} intead of \{\} for frontera

mathieu.morlighem at 7:30 AM 4/1/26

Adjusted tolerances

34657535+TidbitSoftware at 10:42 AM 4/1/26

Updated URL and version for GSHHG

34657535+TidbitSoftware at 12:56 PM 4/1/26

CHG: ISMIP7 Ocean forcings - Do not reuse definitions from ISMIP6 for ISMIP7. Additionally, fix space indent to tab in "EnumDefinitions.h".

inwoo0415 at 11:11 PM 4/1/26

BUG: Fix block scoping with {} to avoid issues with cross-initialization of variables in Ismip6 and Ismip7.

inwoo0415 at 11:50 PM 4/1/26

CHG: removing comma

mathieu.morlighem at 11:28 AM 4/2/26

CHG: deal with case when thickness is 0 in 3D

mathieu.morlighem at 12:51 PM 4/2/26

CHG: trying to fix rush condition by separating make and make install:

mathieu.morlighem at 1:11 PM 4/2/26

CHG: updates to avoid rush conditions

mathieu.morlighem at 1:42 PM 4/2/26

CHG: better warning if errlog is not empty

Mathieu Morlighem at 11:26 AM 4/3/26

#19 (Mar 27, 2026, 12:55:00 PM)

CHG: added checks to avoid non physical PDD inputs

Mathieu Morlighem at 6:33 AM 3/25/26

NEW: preparing code for Alicia's new PDD scheme

Mathieu Morlighem at 6:54 AM 3/25/26

Add mapped precip scaling factor input

95945328+NJSchlegel at 12:34 PM 3/26/26

95945328+NJSchlegel at 12:36 PM 3/26/26

CHG: add input for scaling mapped precipitation in GEMB

95945328+NJSchlegel at 1:10 PM 3/26/26

Adjusted tolerances

34657535+TidbitSoftware at 9:21 AM 3/27/26

CHG: remove upper limit of GEMB pricip scaling factor for mapping

95945328+NJSchlegel at 9:23 AM 3/27/26

#18 (Mar 20, 2026, 12:55:00 PM)

Install scripts for Chaco stalling on download of user guide, resulting in error

34657535+TidbitSoftware at 3:09 PM 3/13/26

CHG: killberg.py - Dimension of levelset should be (numberofvertices,), not (numberofvertices,1). Add a check for this in the intermediates.

inwoo0415 at 10:22 PM 3/15/26

Clean up unused cluster class: hpc_simba2.m

inwoo0415 at 11:10 PM 3/15/26

ADD: reverse color in bluewhitered, if true, then red for negative and blue for positive

enigne at 6:53 PM 3/16/26

BUG: plot_unit.py - tripcolor in matplotlib does not support `colorlevels`. Remove `colorlevels` in drawing elements.

inwoo0415 at 7:59 PM 3/16/26

CHG: better handling of InterpFromGrid, now automatically added to ISSM

Mathieu Morlighem at 6:58 AM 3/18/26

CHG: documentation should say water eq, not ice eq

Mathieu Morlighem at 10:16 AM 3/18/26

#17 (Mar 13, 2026, 12:55:00 PM)

CHG: adding wilkins.jpl.nasa.gov to list of machines

mattia.poinelli at 3:03 PM 3/6/26

CHG: plotmodel.py – Fix a bug in ImageGrid, which automatically shares the x and y axes across all axes. Use subplots to address this issue. The use_subplots option enables this functionality. However, this feature is experimental and may require further improvements.

inwoo0415 at 5:57 AM 3/8/26

Adjusted tolerances

34657535+TidbitSoftware at 11:54 AM 3/8/26

CHG: `hydrologyshakti` now enables the use of grounded ice melting rate from `md.basalforcings.groundedice_melt_rate` through the `isbasalforcing` option.

inwoo0415 at 12:11 AM 3/9/26

CHG: hydrologyshakti.m - Update isbasalforcing option.

inwoo0415 at 12:20 AM 3/9/26

CHG: HydrologyShaktiAnalysis.cpp - Fix bugs in unit conversion of basalforcings from md.basalforcings.groundedice_melt_rate (ice meter to freshwater meter).

inwoo0415 at 12:21 AM 3/9/26

CHG: Synchronize Matlab > Python.

inwoo0415 at 12:37 AM 3/9/26

CHG: `hydrologyshakti` - Use `melt_flag`, not "isbasalforcing" flag. Additionally, remove `HydrologyshaktiIsBasalforcingEnum` in `EnumDefinitions.h`.

inwoo0415 at 5:28 AM 3/9/26

BUG: fixed bad python indentation

Mathieu Morlighem at 5:45 AM 3/9/26

BUG: Fix typos and maintain consistency.

inwoo0415 at 5:53 AM 3/9/26

Adjusted tolerances

34657535+TidbitSoftware at 10:12 AM 3/9/26

option to not output final result

daniel.abele at 3:09 PM 3/9/26

BUG: HydrologyShaktiAnalysis.cpp – Fix bug in the unit conversion of md.basalforcings.groundedice_melting_rate, converting from ice m s-1 to kg m-2 s-1.

inwoo0415 at 8:48 PM 3/9/26

CHG: print clear message when bin file is not consistent with issm.exe (e.g., field not found or not the right format)

Mathieu Morlighem at 6:16 AM 3/12/26

CHG: ask user to create repo instead of erroring out

Mathieu Morlighem at 5:55 AM 3/13/26

CHG: make v6 official

Mathieu Morlighem at 5:56 AM 3/13/26

CHG: minor, cosmetics

mathieu.morlighem at 9:24 AM 3/13/26