Skip to content

Commit

Permalink
clean up
Browse files Browse the repository at this point in the history
  • Loading branch information
lee1043 committed Jan 16, 2025
1 parent 76ad1f3 commit a6319c3
Showing 1 changed file with 26 additions and 5 deletions.
31 changes: 26 additions & 5 deletions docs/metrics_monsoon.rst
Original file line number Diff line number Diff line change
Expand Up @@ -9,17 +9,38 @@ Monsoon
Overview
========

The PMP currently can be used to produce baseline metrics on the overall evolution and pattern of regional monsoons.
The PMP currently can be used to produce baseline metrics on the overall pattern and evolution of regional monsoons.

These evolution results are based on the work of Sperber and Annamalai (2014). Climatological pentads of precipitation in observations and CMIP5 for six monsoon-related domains (AIR: All-India Rainfall, AUS: Australian Monsoon, GoG: Gulf of Guinea, NAM: North American Monsoon, SAM: South American Monsoon, and Sahel). In the Northern Hemisphere the 73 climatological pentads run from January-December, while in the Southern Hemisphere the climatological pentads run from July-June. For each domain the precipitation is accumulated at each subsequent pentad and then divided by the total precipitation to give the fractional accumulation of precipitation as a function of pentad. Except for GoG, onset (decay) of monsoon occurs for a fractional accumulation of 0.2 (0.8). Between these fractional accumulations the accumulation of precipitation is nearly linear as the monsoon season progresses.
Spatial pattern
~~~~~~~~~~~~~~~

These pattern results are based on the work of Wang et al. (2011), examining the annual cycle of precipitation in observations
and CMIP for six monsoon-related domains.


Temporal evolution
~~~~~~~~~~~~~~~~~~

These evolution results are based on the work of Sperber and Annamalai (2014).
Climatological pentads of precipitation in observations and CMIP5 for six monsoon-related domains
(AIR: All-India Rainfall, AUS: Australian Monsoon, GoG: Gulf of Guinea, NAM: North American Monsoon,
SAM: South American Monsoon, and Sahel). In the Northern Hemisphere the 73 climatological pentads run
from January-December, while in the Southern Hemisphere the climatological pentads run from July-June.
For each domain the precipitation is accumulated at each subsequent pentad and then divided by the total
precipitation to give the fractional accumulation of precipitation as a function of pentad.
Except for GoG, onset (decay) of monsoon occurs for a fractional accumulation of 0.2 (0.8).
Between these fractional accumulations the accumulation of precipitation is nearly linear as the monsoon season progresses.

Demo
====
* `PMP demo Jupyter notebook`_
* `PMP demo Jupyter notebook (spatial pattern)`_ (Wang et al. 2011)
* `PMP demo Jupyter notebook (temporal evolution)`_ (Sperber and Annamalai 2014)

References
==========
* Sperber, K.R. and Annamalai, H., 2014. The use of fractional accumulated precipitation for the evaluation of the annual cycle of monsoons. Climate Dynamics, 43, 3219-3244, doi:10.1007/s00382-014-2099-3
* Wang, B., Kim, HJ., Kikuchi, K. et al. 2011. Diagnostic metrics for evaluation of annual and diurnal cycles. Clim Dyn 37, 941–955. https://doi.org/10.1007/s00382-010-0877-0
* Sperber, K.R. and Annamalai, H., 2014. The use of fractional accumulated precipitation for the evaluation of the annual cycle of monsoons. Climate Dynamics, 43, 3219-3244, https://doi.org/10.1007/s00382-014-2099-3

.. _PMP demo Jupyter notebook: examples/Demo_2b_monsoon_sperber.html
.. _PMP demo Jupyter notebook (spatial pattern): examples/Demo_2a_monsoon_wang.html
.. _PMP demo Jupyter notebook (temporal evolution): examples/Demo_2b_monsoon_sperber.html

0 comments on commit a6319c3

Please sign in to comment.