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-rw-r--r--docs/source/operations/projections/isea.rst6
1 files changed, 5 insertions, 1 deletions
diff --git a/docs/source/operations/projections/isea.rst b/docs/source/operations/projections/isea.rst
index adb703a1..73f0af7a 100644
--- a/docs/source/operations/projections/isea.rst
+++ b/docs/source/operations/projections/isea.rst
@@ -43,7 +43,9 @@ Parameters
.. option:: +orient=<string>
- Can be set to either ``isea`` or ``pole``.
+ Can be set to either ``isea`` or ``pole``. See Snyder's Figure 12 for pole orientation :cite:`Snyder1992`.
+
+ *Defaults to isea*
.. option:: +azi=<value>
@@ -62,6 +64,8 @@ Parameters
.. option:: +mode=<string>
Can be either ``plane``, ``di``, ``dd`` or ``hex``.
+
+ *Defaults to plane*
.. include:: ../options/lon_0.rst