GEOS-Chem Adjoint v35

Overview

BETA RELEASE

• Previous version: GEOS-Chem_Adjoint_v34

What's new in this version

GEOS-Chem Adjoint v35 contains the following major updates and improvements.

Feature	Type	Submitted by	Committed by	Version	Status
Add support for NEI2008 Emissions	Forward Model Update	Daven Henze (CU Boulder)	Yanko Davila (CU Boulder)	v35	Approved 24 Jul 2013
Fixed a bug in Henry's constant	Forward Model Bug Fix	Fabien Paulot (Harvard)	Yanko Davila (CU Boulder)	v35	Approved 24 Jul 2013
Prevent negative emissions over Canada	Forward Model Bug Fix	Fabien Paulot (Harvard), Christoph Keller	Yanko Davila (CU Boulder)	v35	Approved 24 Jul 2013
Add support for new deposition based cost functions	Adjoint Model Update	Fabien Paulot (Harvard), Daven Henze (CU Boulder)	Yanko Davila (CU Boulder)	v35	Approved 24 Jul 2013
Bug fix for 3-hourly GFED3 emissions	Forward Model Bug Fix	Christoph Keller	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
Bug fix in grid_mod.F90	Forward Model Bug Fix	Christoph Keller	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
Bug in ship CO emissions	Forward Model Bug Fix	Chris holmes	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
Bugs in ship emissions and non-local PBL mixing	Forward Model Bug Fix	Chris holmes	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
Eliminate several more array temporaries	Forward Model Bug Fix	GEOS-Chem Support Team	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
Implemented new ship emissions scheme	Adjoint Model Update	Daven Henze (CU Boulder), Yanko Davila (CU Boulder)	Yanko Davila (CU Boulder)	v35a	Approved 30 Oct 2013
GFED2 8 Day Bug Fix	Adjoint Model Bug Fix	Li Zhang (CU Boulder)	Yanko Davila (CU Boulder)	v35c	Approved 23 Sept 2014
Deposition Diagnostics Bug Fix	Adjoint Model Bug Fix	Juliet (CU Boulder)	Yanko Davila (CU Boulder)	v35c	Approved 23 Sept 2014
Loose ANISO convergence	Adjoint Model Bug Fix	Shannon Capps (EPA)	Yanko Davila (CU Boulder)	v35c	Approved 23 Sept 2014
Off Diagonal Covariance Bug Fix	Adjoint Model Bug Fix	Nicolas Bousseres (CU Boulder)	Yanko Davila (CU Boulder)	v35c	Approved 23 Sept 2014
LBFGS allocation Fix	Adjoint Model Bug Fix	Alex Turner (Harvard)	Yanko Davila (CU Boulder)	v35c	Approved 23 Sept 2014

- Updates to forward model

Add NEI2008 Emissions

Implemented NEI2008 Emissions Inventory

See benchmark results gcadj_std_v35 tests 003 and 023

--Yanko 15:28, 24 July 2013 (EDT)

- Bug fixes in forward model

Fixed a bug in Henry's constant

Small error in the definition of the Henry's constant, which is used in the wet deposition routine. See forward wiki.

--Yanko 15:28, 24 July 2013 (EDT)

Prevent negative emissions over Canada

Found a nasty bug in CAC emissions. We should set the emissions to 0 when 2002 exceeds 2005 by more than a factor of three. See forward wiki.

--Yanko 15:28, 24 July 2013 (EDT)

Bug fix for 3-hourly GFED3 emissions

Running with 3-hourly emissions from the first day of a month seems to work fine, but trying to start on any other day appears to cause a problem. See forward wiki.

--Yanko 14:38, 30 October 2013 (EDT)

Bug fix in grid_mod.F90

The sine of the last latitude edge (i.e. the north pole) is not calculated, which can cause problems for the regridding. See forward wiki.

--Yanko 14:38, 30 October 2013 (EDT)

Bug in ship CO emissions

EMEP ship emissions inventory was previously overwriting all ship CO emissions globally. See forward wiki.

--Yanko 19:02, 30 October 2013 (EDT)

Bugs in ship emissions and non-local PBL mixing

Ship NOx emissions with the ICOADS-AMVER inventory were 3.3 times too low, due to a NO2 vs. N molecular weight error. Emissions should be 5.0Tg(N)/yr. As a result, O3 and HNO3 concentrations were underestimated, especially over the N. Atlantic and N. Pacific. See forward wiki.

--Yanko 19:02, 30 October 2013 (EDT)

Eliminate several more array temporaries

In many areas of GEOS-Chem, we pass arrays as arguments from one routine to another. But if this is not done properly, it can cause GEOS-Chem to use an excessive amount of memory and take longer to run, especially at very fine resolutions. See forward wiki.

--Yanko 14:38, 30 October 2013 (EDT)

- Updates to adjoint model

Add support for new deposition based cost functions

Added support for new deposition based cost functions.

See benchmark results gcadj_std_v35 tests 012 and 023

--Yanko 15:28, 24 July 2013 (EDT)

Implemented new ship emissions scheme

Implemented new ship emissions scheme matching forward model paranox module. Changes to the adjoint include, but are not limited to writing the adjoint of paranox and updating setemis_adj module.

Ship_emissions#PARANOX_ship_plume_model

Ship_emissions#PARANOX_ship_plume_model

See benchmark results gcadj_std_v35a tests

--Yanko 14:38, 30 October 2013 (EDT)

- Bug fixes in adjoint model

Small bug fix in wetscav_adj_mod.f

Fixed a small bug related to the ALPHA2 variable on WETDEP_ADJ subroutine in wetscav_adj_mod.f

--Yanko 15:28, 24 July 2013 (EDT)

GFED2 8 Day Bug Fix

GFED2 data was not read correctly in the backward calculation if the simulation include the first day of the year ( January 1st ). Because the last day of GFED2 data in December is Dec 27th, and the first day of January is 1st, so the gap is not 8 day.

--Yanko 15:25, 24 January 2014 (EST)

Deposition Diagnostics Bug Fix

Fix wetdep diagnostics 37, 38 and drydep 44.

--Yanko 15:25, 24 January 2014 (EST)

Loose ANISO convergence

The convergence criteria for ANISO have been relaxed to allow for quicker calculations.

--Yanko 15:25, 24 January 2014 (EST)

Off Diagonal Covariance Bug Fix

Off diagonal covariance fix.

--Yanko 15:25, 24 January 2014 (EST)

LBFGS allocation Fix

LBFGS allocation fix.

--Yanko 15:25, 24 January 2014 (EST)