Variables in this Dataset

/Spacecraft_Data/along_track_time: Array of 64 bit Reals [ = 0..15925]
long_name: J2000 time when spacecraft passed over midpoint of the along track grid cell row along the nadir path.
units: seconds
/Spacecraft_Data/sc_nadir_lat: Grid
long_name: Spacecraft latitude at midpoint of the grid cell row along nadir track
units: degrees_north
coordinates: along_track_time
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
sc_nadir_lat: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/along_track_time_utc: Grid
long_name: UTC time stamp when spacecraft passed over midpoint of the along track grid cell row along the nadir path.
coordinates: along_track_time
along_track_time_utc: Array of Strings [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/sc_geodetic_alt_ellipsoid: Grid
long_name: Spacecraft altitude above Earth WGS84 reference ellipsoid along the nadir track.
units: meters
coordinates: along_track_time
valid_min: 700000.
valid_max: 900000.
_FillValue: -9999.
sc_geodetic_alt_ellipsoid: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/z_vel: Grid
units: meters/second
coordinates: along_track_time
long_name: SC velocity in z direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -8000.
valid_max: 8000.
_FillValue: -9999.
z_vel: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/pitch: Grid
long_name: SC pitch interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
units: degrees
coordinates: along_track_time
valid_min: -3.
valid_max: 3.
_FillValue: -9999.
pitch: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/yaw: Grid
long_name: SC yaw interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
units: degrees
coordinates: along_track_time
valid_min: -3.
valid_max: 3.
_FillValue: -9999.
yaw: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/x_vel: Grid
units: meters/second
coordinates: along_track_time
long_name: SC velocity in x direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -8000.
valid_max: 8000.
_FillValue: -9999.
x_vel: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/along_track_qual_flag: Grid
coordinates: along_track_time
flag_masks: 1s, 2s, 4s
long_name: Bit flags that record the quality of spacecraft position, velocity and orientation measurements for each cross track row.
flag_meanings: EPHEMERIS_QUAL ATTITUDE_QUAL ANTENNA_POINTING_QUAL
along_track_qual_flag: Array of 16 bit Unsigned integers [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/antenna_scan_angle: Grid
units: degrees
coordinates: along_track_time
long_name: The angle in the X-Y plane of the spacecraft coordinate system that indicates the angular position of the antenna assembly interpolated to the time the spacecraft passed over the midpoint of the grid cell row along the nadir track. The angle is measured in the counterclockwise direction from the X axis, which approximates the direction of motion of the spacecraft.
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
antenna_scan_angle: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/x_pos: Grid
units: meters
coordinates: along_track_time
long_name: SC position in x direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -9999999.
valid_max: 9999999.
_FillValue: -9999.
x_pos: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/z_pos: Grid
units: meters
coordinates: along_track_time
long_name: SC position in z direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -9999999.
valid_max: 9999999.
_FillValue: -9999.
z_pos: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/y_pos: Grid
units: meters
coordinates: along_track_time
long_name: SC position in y direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -9999999.
valid_max: 9999999.
_FillValue: -9999.
y_pos: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/right_ascension: Grid
units: degrees
coordinates: along_track_time
long_name: Right ascension of the spacecraft boresight vector at the time the spacecraft passed over the midpoint of the grid cell row along the nadir track.
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
right_ascension: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/sc_alongtrack_velocity: Grid
long_name: Spacecraft velocity in the direction of the spacecraft orbital track.
coordinates: along_track_time
valid_min: -8000.
valid_max: 8000.
_FillValue: -9999.
units: meters/second
sc_alongtrack_velocity: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/sc_radial_velocity: Grid
units: meters/second
coordinates: along_track_time
long_name: Spacecraft velocity in the direction of the radius of the orbital track. Velocity that records change in altitude.
valid_min: -8000.
valid_max: 8000.
_FillValue: -9999.
sc_radial_velocity: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/roll: Grid
long_name: SC roll interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
units: degrees
coordinates: along_track_time
valid_min: -3.
valid_max: 3.
_FillValue: -9999.
roll: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/declination: Grid
units: degrees
coordinates: along_track_time
long_name: Declination of the spacecraft boresight vector at the time the spacecraft passed over the midpoint of the grid cell row along the nadir track.
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
declination: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/antenna_look_angle: Grid
units: degrees
coordinates: along_track_time
long_name: The angle defined by the antenna boresight vector and the spacecraft nadir vector interpolated to the time the spacecraft passed over the midpoint of the grid cell row along the nadir track.
valid_min: 0.
valid_max: 180.
_FillValue: -9999.
antenna_look_angle: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/y_vel: Grid
units: meters/second
coordinates: along_track_time
long_name: SC velocity in y direction of Earth Centered Rotating coordinate system interpolated to time spacecraft passed over midpoint of grid cell row along the nadir track
valid_min: -8000.
valid_max: 8000.
_FillValue: -9999.
y_vel: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/along_track_mode_flag: Grid
long_name: Bit flags that indicate the operational model or behavior of the spacecraft for each cross track row.
coordinates: along_track_time
flag_masks: 1s, 2s, 4s, 8s
flag_meanings: INSTRUMENT_VIEWING_MODE EPHEMERIS_USAGE XPOL_DATA XPOL_TRANSITION
along_track_mode_flag: Array of 16 bit Unsigned integers [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/sc_nadir_angle: Grid
units: degrees
coordinates: along_track_time
long_name: The angle defined by the spacecraft geodetic nadir vector and the negative Z axis of the spacecraft coordinate system at the time the spacecraft passed over the midpoint of the grid cell row along the nadir track.
valid_min: 0.
valid_max: 180.
_FillValue: -9999.
sc_nadir_angle: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Spacecraft_Data/sc_nadir_lon: Grid
long_name: Spacecraft longitude at midpoint of grid cell row along nadir track
units: degrees_east
coordinates: along_track_time
valid_min: -180.
valid_max: 179.9989929
_FillValue: -9999.
sc_nadir_lon: Array of 32 bit Reals [ = 0..15925]
along_track_time: Array of 64 bit Reals [ = 0..15925]
/Crosstrack_Data/distance_from_nadir: Array of 32 bit Reals [ = 0..1086]
units: meters
valid_min: -550000.
long_name: The distance from the center of the swath grid cell to the spacecraft's sub-nadir track on the Earth's surface.
valid_max: 550000.
_FillValue: -9999.
/Crosstrack_Data/sigma0_resolution: Array of 32 bit Reals [ = 0..1086]
long_name: Specifies the resolution of sigma0s based on their cross track swath location.
valid_min: 0.
valid_max: 10000.
_FillValue: -9999.
units: meters
/Sigma0_Data/cell_lat: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative geodetic latitude of grid cell
units: degrees_north
valid_min: -90.
valid_max: 90.
/Sigma0_Data/cell_lon: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative longitude of grid cell
units: degrees_east
valid_min: -180.
valid_max: 179.9989929
/Sigma0_Data/cell_altitude_std_dev: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Standard deviation of sea level altitude measure for each grid cell
units: meters
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 100.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_qual_flag_vv: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
long_name: Representative quality flags of vertical polarization sigma0 measures in the grid cell
coordinates: cell_lat cell_lon
flag_masks: 1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s, 4096s, 8192s, 16384s, 32768s
flag_meanings: FORWARD_S0_GOOD_QUAL AFT_S0_GOOD_QUAL FORWARD_S0_IN_RANGE AFT_S0_IN_RANGE FORWARD_RFI_DETECTED FORWARD_RFI_CORRECTED AFT_RFI_DETECTED AFT_RFI_CORRECTED FORWARD_FARADAY_ROTATION AFT_FARADAY_ROTATION FORWARD_KP AFT_KP FORWARD_NULL AFT_NULL FORWARD_NADIR_ANGLE AFT_NADIR_ANGLE
/Sigma0_Data/cell_sigma0_xpol_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for aft looks - cross polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_vv_aft_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before algorithm applies noise subtraction for aft looks - vertical polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_area_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Sum of the topographic areas used to normalize all of the forward looking sigma0s in the grid cell.
units: meters**2
coordinates: cell_lat cell_lon
valid_min: 100.
valid_max: 10000000.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_xpol_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to forward looking cross-polarized sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_hh_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for forward looks - horizontal polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_kp_hh_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
long_name: Representative components of the forward looking sigma0 error measure that account for calibration error, communication error and contamination - horizontal polarization
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_kp_xpol_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
coordinates: cell_lat cell_lon
long_name: Representative components of the forward looking sigma0 error measure that account for calibration error, communication error and contamination - cross polarization
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_hh_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for aft looks - horizontal polarization
valid_min: -0.009999999776
coordinates: cell_lat cell_lon
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/xpol_correlation_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..1]
long_name: The co-pol to cross-pol correlation for aft looking sigma0s based on common transmitter and both receivers.
coordinates: cell_lat cell_lon
valid_min: -10.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_kp_hh_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
long_name: Representative components of the aft looking sigma0 error measure that account for calibration error, communication error and contamination - horizontal polarization
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 1.
_FillValue: -9999.
/Sigma0_Data/polar_grid_column_index: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
coordinates: cell_lat cell_lon
long_name: Column index of the location of the center of the swath cell in the 1 km Lambert azimuthal equal area Earth based grid centered on the nearer pole.
valid_min: 0.
valid_max: 18000.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_hh_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to aft looking horizontal polarization sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/selected_frequency_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
units: MHz
coordinates: cell_lat cell_lon
long_name: The mid-point frequency of the noise-only channel of the radar instrument when the aft looking data in the specified grid cell were acquired.
valid_min: 1218.75
valid_max: 1296.25
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_xpol_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for forward looks - cross polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/xpol_correlation_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..1]
coordinates: cell_lat cell_lon
long_name: The co-pol to cross-pol correlation for forward looking sigma0s based on common transmitter and both receivers.
valid_min: -10.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_qual_flag_xpol: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
long_name: Representative quality flags of cross polarization sigma0 measures in the grid cell
coordinates: cell_lat cell_lon
flag_masks: 1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s, 4096s, 8192s, 16384s, 32768s
flag_meanings: FORWARD_S0_GOOD_QUAL AFT_S0_GOOD_QUAL FORWARD_S0_IN_RANGE AFT_S0_IN_RANGE FORWARD_RFI_DETECTED FORWARD_RFI_CORRECTED AFT_RFI_DETECTED AFT_RFI_CORRECTED FORWARD_FARADAY_ROTATION AFT_FARADAY_ROTATION FORWARD_KP AFT_KP FORWARD_NULL AFT_NULL FORWARD_NADIR_ANGLE AFT_NADIR_ANGLE
/Sigma0_Data/earth_incidence_std_dev_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Standard deviation of the angle defined by the antenna boresight vector and the normal to the reference Earth surface for all forward looks in the cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/earth_azimuth_std_dev_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: The standard deviation of the angle defined by the vector that extends from the intersection of the spacecraft geodetic nadir vector on the Earth's surface to geographic North and the vector that extends from the intersection of the spacecraft geodetic nadir on the Earth's surface to the pierce point of the boresight vector for all forward looks in the grid cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_vv_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to forward looking vertical polarization sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/selected_frequency_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
units: MHz
coordinates: cell_lat cell_lon
long_name: The mid-point frequency of the noise-only channel of the radar instrument when the forward looking data in the specified grid cell were acquired.
valid_min: 1218.75
valid_max: 1296.25
_FillValue: -9999.
/Sigma0_Data/slant_range_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative slant range of aft looking sigma0 measures in grid cell
units: meters
coordinates: cell_lat cell_lon
valid_min: 700000.
valid_max: 1100000.
_FillValue: -9999.
/Sigma0_Data/earth_azimuth_mean_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
units: degrees
coordinates: cell_lat cell_lon
long_name: The mean of the angle defined by the vector that extends from the intersection of the spacecraft geodetic nadir vector on the Earth's surface to geographic North and the vector that extends from the intersection of the spacecraft geodetic nadir on the Earth's surface to the pierce point of the boresight vector for all forward looks in the grid cell.
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
/Sigma0_Data/earth_incidence_std_dev_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Standard deviation of the angle defined by the antenna boresight vector and the normal to the reference Earth surface for all aft looks in the cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/polarization_rotation_angle_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Polarization roll angle at doppler centroid for a grid cell aft look measurement
units: degrees
coordinates: cell_lat cell_lon
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/slant_range_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative slant range of forward looking sigma0 measures in grid cell
units: meters
coordinates: cell_lat cell_lon
valid_min: 700000.
valid_max: 1100000.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_vv_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to aft looking vertical polarization sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_gradient: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative land slope of the grid cell
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/cell_altitude: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative altitude above sea level of the grid cell
units: meters
coordinates: cell_lat cell_lon
valid_min: -100.
valid_max: 9000.
_FillValue: -9999.
/Sigma0_Data/cell_kp_vv_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
long_name: Representative components of the forward looking sigma0 error measure that account for calibration error, communication error and contamination - vertical polarization
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/earth_azimuth_mean_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: The mean of angle defined by the vector that extends from the intersection of the spacecraft geodetic nadir vector on the Earth's surface to geographic North and the vector that extends from the intersection of the spacecraft geodetic nadir on the Earth's surface to the pierce point of the boresight vector for all aft looks in the grid cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_hh_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to forward looking horizontal polarization sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_xpol_aft_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before algorithm applies noise subtraction for aft looks - cross polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/earth_azimuth_std_dev_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
units: degrees
coordinates: cell_lat cell_lon
long_name: The standard deviation of angle defined by the vector that extends from the intersection of the spacecraft geodetic nadir vector on the Earth's surface to geographic North and the vector that extends from the intersection of the spacecraft geodetic nadir on the Earth's surface to the pierce point of the boresight vector for all aft looks in the grid cell.
valid_min: 0.
valid_max: 359.9989929
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_hh_aft_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before algorithm applies noise subtraction for aft looks - horizontal polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_angle_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation angle for all forward looking sigma0s in the grid cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/polar_grid_row_index: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Row index of the location of the center of the swath cell in the 1 km Lambert azimuthal equal area Earth based grid centered on the nearer pole.
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 18000.
_FillValue: -9999.
/Sigma0_Data/cell_kp_vv_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
long_name: Representative components of the aft looking sigma0 error measure that account for calibration error, communication error and contamination - vertical polarization
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 1.
_FillValue: -9999.
/Sigma0_Data/cell_radar_mode_flag: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
long_name: Representative conditions of sigma0 measure for the grid cell
coordinates: cell_lat cell_lon
flag_masks: 1s, 2s, 4s, 8s
flag_meanings: RECEIVE_ONLY_MODE_L1C FORWARD_XPOL_DATA AFT_XPOL_DATA NADIR_REGION
/Sigma0_Data/cylindrical_grid_column_index: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Column index of the location of the center of the swath cell in the 1 km cylindrical equal area Earth based grid based with a reference latitude of 30 degrees.
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 34704.
_FillValue: -9999.
/Sigma0_Data/earth_incidence_mean_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Mean of the angle defined by the antenna boresight vector and the normal to the reference Earth surface for all aft looks in the grid cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/number_of_cell_looks_aft: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
coordinates: cell_lat cell_lon
valid_min: 0
long_name: Sum of statistically independent energy measurements that contribute to cell for aft looking sigma0s.
valid_max: 130
_FillValue: 65534
/Sigma0_Data/cell_sigma0_xpol_fore_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before the algorithm applies noise subtraction for forward looks - cross polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_qual_flag_hh: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
long_name: Representative quality flags of horizontal polarization sigma0 measures in the grid cell
coordinates: cell_lat cell_lon
flag_masks: 1s, 2s, 4s, 8s, 16s, 32s, 64s, 128s, 256s, 512s, 1024s, 2048s, 4096s, 8192s, 16384s, 32768s
flag_meanings: FORWARD_S0_GOOD_QUAL AFT_S0_GOOD_QUAL FORWARD_S0_IN_RANGE AFT_S0_IN_RANGE FORWARD_RFI_DETECTED FORWARD_RFI_CORRECTED AFT_RFI_DETECTED AFT_RFI_CORRECTED FORWARD_FARADAY_ROTATION AFT_FARADAY_ROTATION FORWARD_KP AFT_KP FORWARD_NULL AFT_NULL FORWARD_NADIR_ANGLE AFT_NADIR_ANGLE
/Sigma0_Data/cell_sigma0_vv_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for aft looks - vertical polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_area_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Sum of the topographic areas used to normalize all of the aft looking sigma0s in the grid cell.
units: meters**2
coordinates: cell_lat cell_lon
valid_min: 100.
valid_max: 10000000.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_vv_fore_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before the algorithm applies noise subtraction for forward looks - vertical polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_hh_fore_noise: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure before the algorithm applies noise subtraction for forward looks - horizontal polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/cell_kp_xpol_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086][ = 0..0]
coordinates: cell_lat cell_lon
long_name: Representative components of the aft looking sigma0 error measure that account for calibration error, communication error and contamination - cross polarization
valid_min: 0.
valid_max: 1.
_FillValue: -9999.
/Sigma0_Data/cylindrical_grid_row_index: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
coordinates: cell_lat cell_lon
long_name: Row index of the location of the center of the swath cell in the 1 km cylindrical equal area Earth based grid based with a reference latitude of 30 degrees.
valid_min: 0.
valid_max: 14616.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_corr_xpol_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation correction applied to aft looking cross-polarized sigma0
coordinates: cell_lat cell_lon
valid_min: 0.
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/number_of_cell_looks_fore: Array of 16 bit Unsigned integers [ = 0..15925][ = 0..1086]
coordinates: cell_lat cell_lon
valid_min: 0
long_name: Sum of statistically independent energy measurements that contribute to cell for forward looking sigma0s.
valid_max: 130
_FillValue: 65534
/Sigma0_Data/polarization_rotation_angle_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Polarization roll angle at doppler centroid for a grid cell forward look measurement
units: degrees
coordinates: cell_lat cell_lon
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/faraday_rotation_angle_aft: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Faraday rotation angle for all aft looking sigma0s in the grid cell.
units: degrees
coordinates: cell_lat cell_lon
valid_min: -90.
valid_max: 90.
_FillValue: -9999.
/Sigma0_Data/cell_sigma0_vv_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
long_name: Representative sigma0 measure for forward looks - vertical polarization
coordinates: cell_lat cell_lon
valid_min: -0.009999999776
valid_max: 10.
_FillValue: -9999.
/Sigma0_Data/earth_incidence_mean_fore: Array of 32 bit Reals [ = 0..15925][ = 0..1086]
units: degrees
coordinates: cell_lat cell_lon
long_name: Mean of the angle defined by the antenna boresight vector and the normal to the reference Earth surface for all forward looks in the grid cell.
valid_min: 0.
valid_max: 90.
_FillValue: -9999.