From 5e5799639a5764d7dafbfec127f85d1afb712c43 Mon Sep 17 00:00:00 2001
From: Kenneth Cheung <kcheung331@gmail.com>
Date: Mon, 26 Jan 2026 15:19:17 -0500
Subject: [PATCH 1/3] update ember diam to use 0.5 in spot

---
 src/behave/spot.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/behave/spot.cpp b/src/behave/spot.cpp
index 07005c1..5d6f0ab 100644
--- a/src/behave/spot.cpp
+++ b/src/behave/spot.cpp
@@ -300,7 +300,7 @@ void Spot::calculateSpottingDistanceFromActiveCrown() {
 
     double windSpeed = spotInputs_.getWindSpeedAtTwentyFeet(SpeedUnits::KilometersPerHour);;
     double windHeight = 6.096; //20ft in meters
-    double emberDiamMm = 1.0;
+    double emberDiamMm = 0.5;
 
     CrownFirebrandProcessor *processor = new CrownFirebrandProcessor(treeHeight,
                                                                      firelineIntensity,

From 22f987c545863ed6683ce2dc3eec37f1e4d51899 Mon Sep 17 00:00:00 2001
From: Kenneth Cheung <kcheung331@gmail.com>
Date: Mon, 26 Jan 2026 15:20:39 -0500
Subject: [PATCH 2/3] change default value of ember diam in
 crownFirebrandProcessor to 0.5

---
 src/behave/CrownFirebrandProcessor.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/behave/CrownFirebrandProcessor.h b/src/behave/CrownFirebrandProcessor.h
index 56330a7..5fdf2a0 100644
--- a/src/behave/CrownFirebrandProcessor.h
+++ b/src/behave/CrownFirebrandProcessor.h
@@ -16,7 +16,7 @@ class CrownFirebrandProcessor
                             double fireInt=0.,
                             double windSpeed=0.,
                             double windHt=0.,
-                            double emberDiam=1.,
+                            double emberDiam=0.5,
                             double ds=0.2);
     virtual ~CrownFirebrandProcessor(){}
 
@@ -46,10 +46,10 @@ class CrownFirebrandProcessor
 
     // These are input property mutators
     void set( double canopyHt=0., double fireInt=0., double windSpeed=0.,
-              double windHt=0., double emberDiam=1., double ds=0.2 ) ;
+              double windHt=0., double emberDiam=0.5, double ds=0.2 ) ;
     void setCanopyHeight( double canopyHt=0. ) ;
     void setDeltaStep( double deltaStep=0.2 ) ;
-    void setEmberDiameter( double emberDiam=1. ) ;
+    void setEmberDiameter( double emberDiam=0.5 ) ;
     void setFirelineIntensity( double fireInt=0. ) ;
     void setWindSpeed( double windSpeed=0. ) ;
     void setWindSpeedHeight( double windHt=0. ) ;

From c97675902f7ffb2a3008d724c59683c70b21aab4 Mon Sep 17 00:00:00 2001
From: Kenneth Cheung <kcheung331@gmail.com>
Date: Tue, 27 Jan 2026 13:58:02 -0500
Subject: [PATCH 3/3] update tests

---
 src/testBehave/testBehave.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/testBehave/testBehave.cpp b/src/testBehave/testBehave.cpp
index 2fa6c9a..97c939a 100644
--- a/src/testBehave/testBehave.cpp
+++ b/src/testBehave/testBehave.cpp
@@ -1424,7 +1424,7 @@ void testSpotModule(TestInfo& testInfo, BehaveRun& behaveRun)
         windSpeedAtTwentyFeet, windSpeedUnits, activeCrownFlameLength, flameHeightUnits);
     behaveRun.spot.calculateSpottingDistanceFromActiveCrown();
 
-    expectedMountainSpottingDistance = 0.384247;
+    expectedMountainSpottingDistance = 0.400473;
     observedMountainSpottingDistance = roundToSixDecimalPlaces(behaveRun.spot.getMaxMountainousTerrainSpottingDistanceFromActiveCrown(spottingDistanceUnits));
     reportTestResult(testInfo, testName, observedMountainSpottingDistance, expectedMountainSpottingDistance, error_tolerance);