README last modified: 12/9/19 Nighttime atomic oxygen (O3P) and hydroxyl (OH) volume mixing ratio retrievals from 2002-2018 using OH 2.0 and 1.6-microns channels on SABER/TIMED. Additional products are given such as OH vibrational temperatures and volume mixing ratios for each vibrational level from v=0-9 as well as estiamted O(1D) volume mixing ratio for the nighttime atmosphere. Link to paper describing atomic oxygen retrieval methodology: https://doi.org/10.1029/2018GL077677 Paper for OH retrieval methodology is in preperation. The data are presented in two dimensions: (altitude, event_number), where altitude ranges from 80 - 100 km in increments of 1 km, and event signifies one scan of the atmosphere. Additional details about the spacecraft location and observing modes, for example, Orbit number, SABER event number, Scanning mode, Latitude, Longitude, etc. are also given. Below are the variables given for each SABER scan: float altitude(alt_dim) ; altitude:units = "km" ; float year(event_dim) ; float day(event_dim) ; day:long_name = "day of year" ; float orbit(event_dim) ; orbit:long_name = "Orbit number" ; float event(event_dim) ; float mode(event_dim) ; mode:long_name = "0=Down 1=Up" ; float latitude(event_dim) ; latitude:long_name = "Spacecraft Latitude" ; latitude:units = "degrees" ; float longitude(event_dim) ; longitude:long_name = "Spacecraft Longitude" ; longitude:units = "degrees" ; float time(event_dim) ; time:long_name = "Msec since Midnight" ; time:units = "msec" ; float SolarZenithAngle(event_dim) ; SolarZenithAngle:long_name = "Solar Zenith Angle" ; SolarZenithAngle:units = "degrees" ; float O(event_dim, alt_dim) ; O:long_name = "Atomic Oxygen Volume Mixing Ratio" ; O:units = "Volume Mixing Ratio" ; float OH(event_dim, alt_dim) ; OH:long_name = "Total OH Volume Mixing Ratio" ; OH:units = "Volume Mixing Ratio" ; float O1D_vmr(event_dim, alt_dim) ; O1D_vmr:long_name = "O1D Volume Mixing Ratio" ; O1D_vmr:units = "Volume Mixing Ratio" ; float O2(event_dim, alt_dim) ; O2:long_name = "O2 Volume Mixing Ratio" ; O2:units = "Volume Mixing Ratio" ; float N2(event_dim, alt_dim) ; N2:long_name = "N2 Volume Mixing Ratio" ; N2:units = "Volume Mixing Ratio" ; float pressure(event_dim, alt_dim) ; pressure:long_name = "Pressure" ; pressure:units = "atm" ; float ktemp(event_dim, alt_dim) ; ktemp:long_name = "Kinetic Temperature" ; ktemp:units = "K" ; float OH_1_tvib(event_dim, alt_dim) ; OH_1_tvib:long_name = "OH(v=1) Vibrational Temperature" ; OH_1_tvib:units = "K" ; float OH_2_tvib(event_dim, alt_dim) ; OH_2_tvib:long_name = "OH(v=2) Vibrational Temperature" ; OH_2_tvib:units = "K" ; float OH_3_tvib(event_dim, alt_dim) ; OH_3_tvib:long_name = "OH(v=3) Vibrational Temperature" ; OH_3_tvib:units = "K" ; float OH_4_tvib(event_dim, alt_dim) ; OH_4_tvib:long_name = "OH(v=4) Vibrational Temperature" ; OH_4_tvib:units = "K" ; float OH_5_tvib(event_dim, alt_dim) ; OH_5_tvib:long_name = "OH(v=5) Vibrational Temperature" ; OH_5_tvib:units = "K" ; float OH_6_tvib(event_dim, alt_dim) ; OH_6_tvib:long_name = "OH(v=6) Vibrational Temperature" ; OH_6_tvib:units = "K" ; float OH_7_tvib(event_dim, alt_dim) ; OH_7_tvib:long_name = "OH(v=7) Vibrational Temperature" ; OH_7_tvib:units = "K" ; float OH_8_tvib(event_dim, alt_dim) ; OH_8_tvib:long_name = "OH(v=8) Vibrational Temperature" ; OH_8_tvib:units = "K" ; float OH_9_tvib(event_dim, alt_dim) ; OH_9_tvib:long_name = "OH(v=9) Vibrational Temperature" ; OH_9_tvib:units = "K" ; float OH_0_vmr(event_dim, alt_dim) ; OH_0_vmr:long_name = "OH(v=0) Volume Mixing Ratio" ; OH_0_vmr:units = "Volume Mixing Ratio" ; float OH_1_vmr(event_dim, alt_dim) ; OH_1_vmr:long_name = "OH(v=1) Volume Mixing Ratio" ; OH_1_vmr:units = "Volume Mixing Ratio" ; float OH_2_vmr(event_dim, alt_dim) ; OH_2_vmr:long_name = "OH(v=2) Volume Mixing Ratio" ; OH_2_vmr:units = "Volume Mixing Ratio" ; float OH_3_vmr(event_dim, alt_dim) ; OH_3_vmr:long_name = "OH(v=3) Volume Mixing Ratio" ; OH_3_vmr:units = "Volume Mixing Ratio" ; float OH_4_vmr(event_dim, alt_dim) ; OH_4_vmr:long_name = "OH(v=4) Volume Mixing Ratio" ; OH_4_vmr:units = "Volume Mixing Ratio" ; float OH_5_vmr(event_dim, alt_dim) ; OH_5_vmr:long_name = "OH(v=5) Volume Mixing Ratio" ; OH_5_vmr:units = "Volume Mixing Ratio" ; float OH_6_vmr(event_dim, alt_dim) ; OH_6_vmr:long_name = "OH(v=6) Volume Mixing Ratio" ; OH_6_vmr:units = "Volume Mixing Ratio" ; float OH_7_vmr(event_dim, alt_dim) ; OH_7_vmr:long_name = "OH(v=7) Volume Mixing Ratio" ; OH_7_vmr:units = "Volume Mixing Ratio" ; float OH_8_vmr(event_dim, alt_dim) ; OH_8_vmr:long_name = "OH(v=8) Volume Mixing Ratio" ; OH_8_vmr:units = "Volume Mixing Ratio" ; float OH_9_vmr(event_dim, alt_dim) ; OH_9_vmr:long_name = "OH(v=9) Volume Mixing Ratio" ; OH_9_vmr:units = "Volume Mixing Ratio" ; For any questions, contact Alex Panka at peter.a.panka@nasa.gov