Add ghi_clear to glossary (#2397)

* Update nomenclature.rst

* remove space

* Update v0.11.3.rst

* Update docs/sphinx/source/whatsnew/v0.11.3.rst

Co-authored-by: Echedey Luis <[email protected]>

---------

Co-authored-by: Echedey Luis <[email protected]>

Author: RDaxini

docs/sphinx/source/user_guide/nomenclature.rst

@@ -71,6 +71,9 @@ There is a convention on consistent variable names throughout the library:
     ghi
         Global horizontal irradiance
 
+    ghi_clear
+        Clearsky global horizontal irradiance [Wm⁻²]
+
     ghi_extra
         Horizontal irradiance at top of atmosphere (extraterrestrial)
 

docs/sphinx/source/whatsnew/v0.11.3.rst

@@ -23,6 +23,7 @@ Documentation
 * Fix Procedural and Object Oriented simulation examples having slightly different results, in :ref:`introtutorial`. (:issue:`2366`, :pull:`2367`)
 * Restructure the user guide with subsections (:issue:`2302`, :pull:`2310`)
 * Add references for :py:func:`pvlib.snow.loss_townsend`. (:issue:`2383`, :pull:`2384`)
+* Add :term:`ghi_clear` to the :ref:`nomenclature` page (:issue:`2272`, :pull`2397`)
 
 Testing
 ~~~~~~~