From 1ea82496ab77abd8246014df9c4e194ee2b52851 Mon Sep 17 00:00:00 2001
From: "yuanjian.z" <yuanjian.z@wustl.edu>
Date: Fri, 15 Nov 2024 13:51:49 -0600
Subject: [PATCH 1/2] Fix PDOWN definition to lower edge and remove
 re-evaporation requirement for washout

---
 GeosCore/convection_mod.F90 | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/GeosCore/convection_mod.F90 b/GeosCore/convection_mod.F90
index 21c94414c..ed4bc5f12 100644
--- a/GeosCore/convection_mod.F90
+++ b/GeosCore/convection_mod.F90
@@ -567,12 +567,12 @@ SUBROUTINE DO_CLOUD_CONVECTION( Input_Opt,  &
     SpcInfo  => NULL()                            ! Species database entry
 
     ! PFICU and PFLCU are on level edges
-    PFICU    => State_Met%PFICU   (I,J,2:State_Grid%NZ+1) ! Dwnwd flx of conv
+    PFICU    => State_Met%PFICU   (I,J,1:State_Grid%NZ) ! Dwnwd flx of conv
                                                           !  ice precip
-                                                          !  [kg/m2/s]
-    PFLCU    => State_Met%PFLCU   (I,J,2:State_Grid%NZ+1) ! Dwnwd flux of conv
+                                                          !  [kg/m2/s] [down edge]
+    PFLCU    => State_Met%PFLCU   (I,J,1:State_Grid%NZ) ! Dwnwd flux of conv
                                                           !  liquid precip
-                                                          !  [kg/m2/s]
+                                                          !  [kg/m2/s] [down edge]
 
     ! # of levels and # of species
     NLAY     = State_Grid%NZ
@@ -1100,10 +1100,8 @@ SUBROUTINE DO_CLOUD_CONVECTION( Input_Opt,  &
 
              ! Check if...
              ! (1) there is precip coming into box (I,J,K) from (I,J,K+1)
-             ! (2) there is re-evaporation happening in grid box (I,J,K)
-             ! (3) there is species to re-evaporate
+             ! (2) there is species to re-evaporate
              IF ( PDOWN(K+1)  > 0 .and. &
-                  REEVAPCN(K) > 0 .and. &
                   T0_SUM      > 0        ) THEN
 
                 ! Compute F_WASHOUT, the fraction of grid box (I,J,L)

From ac3cc507f784a2bb2cb0f512c8c315c92f3c6914 Mon Sep 17 00:00:00 2001
From: "yuanjian.z" <yuanjian.z@wustl.edu>
Date: Fri, 15 Nov 2024 13:53:12 -0600
Subject: [PATCH 2/2] Update ChangeLog

---
 CHANGELOG.md | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 17892dda0..95c26e9e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,17 @@ This file documents all notable changes to the GEOS-Chem repository starting in
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased] - TBD
+### Added
+
+### Fixed
+- Fixed PDOWN definition to lower rather than upper edge
+
+### Changed
+
+### Removed
+- Removed re-evaporation requirement for washout
+
 ## [14.5.0] - 2024-11-07
 ### Added
 - Added vectors `State_Chm%KPP_AbsTol` and `State_Chm%KPP_RelTol`