From b802cf018f3bac9e34d5589b812143ec7e44aabe Mon Sep 17 00:00:00 2001
From: DankerMu <127004858+DankerMu@users.noreply.github.com>
Date: Fri, 13 Feb 2026 20:58:30 +0800
Subject: [PATCH] feat: enable terrain solar radiation (TSR) by default

Change terrain_radiation default from 0 to 1 so TSR correction
is active out of the box.
---
 src/classes/Model_Control.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/classes/Model_Control.hpp b/src/classes/Model_Control.hpp
index 5b641d7..bf53a85 100644
--- a/src/classes/Model_Control.hpp
+++ b/src/classes/Model_Control.hpp
@@ -202,7 +202,7 @@ class Control_Data : public PrintOutDt{
     double solar_lat_deg_fixed = NA_VALUE; /* SOLAR_LAT_DEG when SOLAR_LONLAT_MODE=FIXED [deg] */
 
     /* Terrain solar radiation (TSR) correction */
-    int terrain_radiation = 0;     /* TERRAIN_RADIATION: 0/1 */
+    int terrain_radiation = 1;     /* TERRAIN_RADIATION: 0/1 */
     double rad_factor_cap = 5.0;    /* RAD_FACTOR_CAP: upper bound for TSR factor */
     double rad_cosz_min = 0.05;     /* RAD_COSZ_MIN: lower bound for cosZ in TSR denominator */