S5P_L2_CH4
Variables
The table below lists the variables that are present in the HARP product that results from an ingestion of S5P_L2_CH4
data.
field name | type | dimensions | unit | description |
---|---|---|---|---|
index | int32 | {time} | zero-based index of the sample within the source product | |
scanline_pixel_index | int16 | {time} | pixel index (0-based) within the scanline | |
datetime | double | {time} | seconds since 2000-01-01 | start time of the measurement |
longitude | float | {time} | degree_east | longitude of the ground pixel center (WGS84) |
latitude | float | {time} | degree_north | latitude of the ground pixel center (WGS84) |
longitude_bounds | float | {time, 4} | degree_east | longitudes of the ground pixel corners (WGS84) |
latitude_bounds | float | {time, 4} | degree_north | latitudes of the ground pixel corners (WGS84) |
instrument_longitude | float | {time} | degree_east | longitude of the sub-instrument point (WGS84) |
instrument_latitude | float | {time} | degree_north | latitude of the sub-instrument point (WGS84) |
instrument_altitude | float | {time} | m | altitude of the instrument (WGS84) |
solar_zenith_angle | float | {time} | degree | zenith angle of the Sun at the ground pixel location (WGS84) |
solar_azimuth_angle | float | {time} | degree | azimuth angle of the Sun at the ground pixel location (WGS84), measured East-of-North |
viewing_zenith_angle | float | {time} | degree | zenith angle of the instrument at the ground pixel location (WGS84) |
viewing_azimuth_angle | float | {time} | degree | azimuth angle of the instrument at the ground pixel location (WGS84), measured East-of-North |
altitude_bounds_surface | float | {time, vertical, 2} | m | altitude bounds per profile layer; altitude is measured as the vertical distance to the surface |
pressure_bounds | float | {time, vertical, 2} | hPa | pressure bounds per profile layer |
CH4_column_mass_mixing_ratio | float | {time} | ng/g | column averaged dry air mixing ratio of methane |
CH4_column_mass_mixing_ratio_stdev | float | {time} | ng/g | uncertainty of the column averaged dry air mixing ratio of methane (1 sigma error) |
CH4_column_mass_mixing_ratio_avk | float | {time, vertical} | column averaging kernel for methane retrieval |