From f16681ba8bff6d32606a01315f0a8da3fa98122a Mon Sep 17 00:00:00 2001
From: Hauke Schulz <43613877+observingClouds@users.noreply.github.com>
Date: Mon, 3 Nov 2025 09:21:46 +0100
Subject: [PATCH 1/3] refine toa radiation calc to include min and s

use full time information to increase temporal resolution of TOA radiation calculation
---
 mllam_data_prep/ops/derive_variable/physical_field.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mllam_data_prep/ops/derive_variable/physical_field.py b/mllam_data_prep/ops/derive_variable/physical_field.py
index d7b9617..392b19c 100644
--- a/mllam_data_prep/ops/derive_variable/physical_field.py
+++ b/mllam_data_prep/ops/derive_variable/physical_field.py
@@ -38,10 +38,10 @@ def calculate_toa_radiation(lat, lon, time):
     # Different handling if xr.DataArray or datetime object
     if isinstance(time, xr.DataArray):
         day = time.dt.dayofyear
-        hour_utc = time.dt.hour
+        hour_utc = time.dt.hour + time.dt.minute / 60 + time.dt.second / 3600
     elif isinstance(time, datetime.datetime):
         day = time.timetuple().tm_yday
-        hour_utc = time.hour
+        hour_utc = time.hour + time.minute / 60 + time.second / 3600
     else:
         raise TypeError(
             "Expected an instance of xr.DataArray or datetime object,"

From 586486066401930de5c2c5f9db09ce791a06e335 Mon Sep 17 00:00:00 2001
From: Hauke Schulz <43613877+observingClouds@users.noreply.github.com>
Date: Mon, 3 Nov 2025 09:32:11 +0100
Subject: [PATCH 2/3] document changes

---
 CHANGELOG.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 105c9d4..4fc6a3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,12 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## unreleased
+
+### Changed
+- consider full time information for derived calculation of TOA radiation [\#82](https://github.com/mllam/mllam-data-prep/pull/82) @observingClouds
+
+
 ## [v0.6.1](https://github.com/mllam/mllam-data-prep/release/tag/v0.6.1)
 
 [All changes](https://github.com/mllam/mllam-data-prep/compare/v0.6.1...v0.6.0)

From d37c8c2fe461e6cb830b640d8dea7f53cbaf6c39 Mon Sep 17 00:00:00 2001
From: Hauke Schulz <43613877+observingClouds@users.noreply.github.com>
Date: Mon, 3 Nov 2025 09:32:49 +0100
Subject: [PATCH 3/3] fix PR number

---
 CHANGELOG.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4fc6a3a..91bba04 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,7 +8,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## unreleased
 
 ### Changed
-- consider full time information for derived calculation of TOA radiation [\#82](https://github.com/mllam/mllam-data-prep/pull/82) @observingClouds
+- consider full time information for derived calculation of TOA radiation [\#84](https://github.com/mllam/mllam-data-prep/pull/84) @observingClouds
 
 
 ## [v0.6.1](https://github.com/mllam/mllam-data-prep/release/tag/v0.6.1)