Add reader for Operational Global Hydro-Estimator Satellite Rainfall …

…Estimates

tathu/satellite/ghe.py

@@ -0,0 +1,29 @@
+#
+# This file is part of TATHU - Tracking and Analysis of Thunderstorms.
+# Copyright (C) 2022 INPE.
+#
+# TATHU - Tracking and Analysis of Thunderstorms is free software; you can redistribute it and/or modify it
+# under the terms of the MIT License; see LICENSE file for more details.
+#
+
+import numpy as np
+from netCDF4 import Dataset
+
+from tathu.utils import array2raster
+
+'''
+Operational Hydro-Estimator Satellite Rainfall Estimates
+https://noaa-ghe-pds.s3.amazonaws.com/index.html#rain_rate
+'''
+
+# Date format
+DATE_REGEX = '\d{12}'
+DATE_FORMAT = '%Y%m%d%H%M' # e.g. 2018040813 => 08 April 2018 - 13:00 UTC
+GLOBAL_EXTENT = [-180.0, -65.0, 180.0, 65.0]
+
+def sat2grid(path):
+    nc = Dataset(path)
+    data = nc.variables['rain'][:]
+    data = np.ma.masked_where(data < nc.variables['rain'].valid_range[0], data)
+    data = np.ma.masked_where(data > nc.variables['rain'].valid_range[1], data)
+    return array2raster(data, GLOBAL_EXTENT, nodata=nc.variables['rain']._FillValue)