======================
Data and Data sources
======================

MISLAND Africa draws on a number of data sources. The data sets listed below are 
owned/made available by the following organizations and individuals under 
separate terms as indicated in their respective metadata.

NDVI
----

+------------------+-----------+---------+--------+------------------+
| Sensor/Dataset   | Temporal  | Spatial | Extent | License          |
+==================+===========+=========+========+==================+
| `LANDSAT7`_      | 2001-2020 | 30 m    | Global | `Public Domain`_ |
+------------------+-----------+---------+--------+------------------+
| `MOD13Q1-coll6`_ | 2001-2016 | 250 m   | Global | `Public Domain`_ |
+------------------+-----------+---------+--------+------------------+

.. _LANDSAT7: https://developers.google.com/earth-engine/datasets/catalog/landsat
.. _AVHRR/GIMMS: https://glam1.gsfc.nasa.gov
.. _MOD13Q1-coll6:
   https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table/mod13q1_v006
   
Soil moisture
-------------

+----------------+-----------+---------------+--------+------------------+
| Sensor/Dataset | Temporal  | Spatial       | Extent | License          |
+================+===========+===============+========+==================+
| `MERRA 2`_     | 1980-2016 | 0.5° x 0.625° | Global | `Public Domain`_ |
+----------------+-----------+---------------+--------+------------------+
| `ERA I`_       | 1979-2016 | 0.75° x 0.75° | Global | `Public Domain`_ |
+----------------+-----------+---------------+--------+------------------+

.. _MERRA 2: https://gmao.gsfc.nasa.gov/reanalysis/MERRA-Land
.. _ERA I: 
   https://www.ecmwf.int/en/forecasts/datasets/reanalysis-datasets/era-interim-land

Precipitation
-------------

+----------------------+-----------+-------------+---------+------------------+
| Sensor/Dataset       | Temporal  | Spatial     | Extent  | License          |
+======================+===========+=============+=========+==================+
| `GPCP v2.3 1 month`_ | 1979-2019 | 2.5° x 2.5° | Global  | `Public Domain`_ |
+----------------------+-----------+-------------+---------+------------------+
| `GPCC V6`_           | 1891-2019 | 1° x 1°     | Global  | `Public Domain`_ |
+----------------------+-----------+-------------+---------+------------------+
| `CHIRPS`_            | 1981-2016 | 5 km        | 50N-50S | `Public Domain`_ |
+----------------------+-----------+-------------+---------+------------------+
| `PERSIANN-CDR`_      | 1983-2015 | 25 km       | 60N-60S | `Public Domain`_ |
+----------------------+-----------+-------------+---------+------------------+

.. _GPCP v2.3 1 month: https://www.esrl.noaa.gov/psd/data/gridded/data.gpcp.html
.. _GPCC V6: https://www.esrl.noaa.gov/psd/data/gridded/data.gpcc.html
.. _CHIRPS:  http://chg.geog.ucsb.edu/data/chirps
.. _PERSIANN-CDR: http://chrsdata.eng.uci.edu

Evapotranspiration
-------------------

+----------------+-----------+---------+--------+------------------+
| Sensor/Dataset | Temporal  | Spatial | Extent | License          |
+================+===========+=========+========+==================+
| MOD16A2_       | 2000-2014 | 1 km    | Global | `Public Domain`_ |
+----------------+-----------+---------+--------+------------------+

.. _MOD16A2:
   https://lpdaac.usgs.gov/dataset_discovery/modis/modis_products_table/mod16a2_v006

Land cover
-----------

+-----------------------+-----------+---------+--------+-----------------+
| Sensor/Dataset        | Temporal  | Spatial | Extent | License         |
+=======================+===========+=========+========+=================+
| `ESA CCI Land Cover`_ | 1992-2018 | 300 m   | Global | `CC by-SA 3.0`_ |
+-----------------------+-----------+---------+--------+-----------------+

.. _ESA CCI Land Cover: https://www.esa-landcover-cci.org
.. _CC by-SA 3.0: https://creativecommons.org/licenses/by-sa/3.0/igo

Soil carbon
-----------

+-----------------------+----------+---------+--------+-----------------+
| Sensor/Dataset        | Temporal | Spatial | Extent | License         |
+=======================+==========+=========+========+=================+
| `Soil Grids (ISRIC)`_ | Present  | 250 m   | Global | `CC by-SA 4.0`_ |
+-----------------------+----------+---------+--------+-----------------+

.. _Soil Grids (ISRIC): https://www.soilgrids.org/
.. _CC by-SA 4.0: https://creativecommons.org/licenses/by-sa/4.0
.. _JPL public: https://www.jpl.nasa.gov/imagepolicy/

Agroecological Zones
--------------------

+---------------------------------------------------+----------+---------+--------+------------------+
| Sensor/Dataset                                    | Temporal | Spatial | Extent | License          |
+===================================================+==========+=========+========+==================+
| `FAO - IIASA Global Agroecological Zones (GAEZ)`_ | 2000     | 8 km    | Global | `Public Domain`_ |
+---------------------------------------------------+----------+---------+--------+------------------+

.. _FAO - IIASA Global Agroecological Zones (GAEZ): http://www.fao.org/nr/gaez/en


Soil Quality
------------
+---------------------------+----------+---------+--------+---------------------+
| Sensor/Dataset            | Temporal | Spatial | Extent | License             |
+===========================+==========+=========+========+=====================+
| `Soil Texture and Depth`_ | Present  | 250 m   | Global | `CC by-SA 4.0`_     |
+---------------------------+----------+---------+--------+---------------------+
| `Parent Material`_        | Present  | N/A     | Global | `CC by-SA 4.0`_     |
+---------------------------+----------+---------+--------+---------------------+
| `Slope`_                  | Present  | 30 m    | Global  | `JPL public`_      |
+---------------------------+----------+---------+--------+---------------------+

.. _Soil Texture and Depth: https://cmr.earthdata.nasa.gov/search/concepts/C1000000240-LPDAAC_ECS.html
.. _Parent Material: https://doi.pangaea.de/10.1594/PANGAEA.788537
.. _Slope: https://developers.google.com/earth-engine/datasets/catalog/OpenLandMap_SOL_SOL_TEXTURE-CLASS_USDA-TT_M_v02

Climate
-------

+---------------------------------------------------+----------+---------+--------+------------------+
| Sensor/Dataset                                    | Temporal | Spatial | Extent | License          |
+===================================================+==========+=========+========+==================+
| `Terra Climate`_                                  | 1985-2019| 30 m    | Global | `Public Domain`_ |
+---------------------------------------------------+----------+---------+--------+------------------+

.. _Terra Climate: https://developers.google.com/earth-engine/datasets/catalog/IDAHO_EPSCOR_TERRACLIMATE#description


Administrative Boundaries
-------------------------

+--------------------------------------------+----------+---------+--------+------------------+
| Sensor/Dataset                             | Temporal | Spatial | Extent | License          |
+============================================+==========+=========+========+==================+
| `Natural Earth Administrative Boundaries`_ | Present  | 10/50m  | Global | `Public Domain`_ |
+--------------------------------------------+----------+---------+--------+------------------+

.. note::
    The `Natural Earth Administrative Boundaries`_ provided in MISLAND-North Africa 
    are in the `public domain`_. The boundaries and names used, and the 
    designations used, in MISLAND-North Africa do not imply official endorsement or 
    acceptance by Conservation International Foundation, or by its partner 
    organizations and contributors.

    If using MISLAND-North Africa for official purposes, it is recommended that users 
    choose an official boundary provided by the designated office of their 
    country.

.. _Natural Earth Administrative Boundaries: http://www.naturalearthdata.com

.. _Public Domain: https://creativecommons.org/publicdomain/zero/1.0