satpy.readers.seadas_l2 module

Reader for SEADAS L2 products.

This reader currently only supports MODIS and VIIRS Chlorophyll A from SEADAS.

The reader includes an additional keyword argument apply_quality_flags which can be used to mask out low-quality pixels based on quality flags contained in the file (l2_flags). This option defaults to False, but when set to True the “CHLWARN” pixels of the l2_flags variable are masked out. These pixels represent data where the chlorophyll algorithm warned about the quality of the result.

class satpy.readers.seadas_l2.SEADASL2HDFFileHandler(filename, filename_info, filetype_info, apply_quality_flags=False)

Bases: _SEADASL2Base, HDF4FileHandler

Simple handler of SEADAS L2 HDF4 files.

Initialize file handler and determine if data quality flags should be applied.

end_time_attr_name = '/attr/End Time'

l2_flags_var_name = 'l2_flags'

platform_attr_name = '/attr/Mission'

sensor_attr_name = '/attr/Sensor Name'

start_time_attr_name = '/attr/Start Time'

time_format = '%Y%j%H%M%S'

class satpy.readers.seadas_l2.SEADASL2NetCDFFileHandler(filename, filename_info, filetype_info, apply_quality_flags=False)

Bases: _SEADASL2Base, NetCDF4FileHandler

Simple handler of SEADAS L2 NetCDF4 files.

Initialize file handler and determine if data quality flags should be applied.

end_time_attr_name = '/attr/time_coverage_end'

l2_flags_var_name = 'geophysical_data/l2_flags'

platform_attr_name = '/attr/platform'

sensor_attr_name = '/attr/instrument'

start_time_attr_name = '/attr/time_coverage_start'

time_format = '%Y-%m-%dT%H:%M:%S.%f'

class satpy.readers.seadas_l2._SEADASL2Base(filename, filename_info, filetype_info, apply_quality_flags=False)

Bases: object

Simple handler of SEADAS L2 files.

Initialize file handler and determine if data quality flags should be applied.

_add_satpy_metadata(data)

_filter_by_valid_min_max(data_arr)

_get_file_key_and_variable(data_id, dataset_info)

_mask_based_on_l2_flags(data_arr)

_platform_name()

_rename_2d_dims_if_necessary(data_arr)

_rows_per_scan()

_valid_min_max(data_arr)

property end_time

Get the ending observation time of this file’s data.

get_dataset(data_id, dataset_info)

Get DataArray for the specified DataID.

property sensor_names

Get sensor for the current file’s data.

property start_time

Get the starting observation time of this file’s data.