NO2 overpass data |
Some notes regarding the data file are given below the table.
Notes
The list in the table above gives for each ground station the geographical coordinates (in degrees). If there is no ground station known in a place listed above, the coordinates are those of the inhabited place.These files show the measurement for which the groundstations is located within the ground pixel of the satellite. Typically, a few overpasses per day are available.
The data files give for each overpass:
- date of observation: year, month, day (UTC)
- time of observation: hour, minutes,seconds (UTC)
- latitude corner 1 [degrees]
- longitude corner 1 [degrees]
- latitude corner 2 [degrees]
- longitude corner 2 [degrees]
- latitude corner 3 [degrees]
- longitude corner 3 [degrees]
- latitude corner 4 [degrees]
- longitude corner 4 [degrees]
- latitude center point [degrees]
- longitude center point [degrees]
- distance between observation and station [km]
- Tropopsheric vertical column [1015/cm2]
- Error on tropospheric vertical column [1015/cm2]
- Total vertical column [1015/cm2]
- Error on total vertical column [1015/cm2]
- Slant column NO2 [1015/cm2]
- Solar zenith angle [degrees]
- Cloud fraction [-] (No data = -1)
- Cloud pressure [hPa] (No data = 0.)
- Cloud radiance fraction [%]
- Across-track pixel number [1-60], only for OMI (set to 0 for other satellites)