1 / 11

Level 2 Ocean Salinity L2OS v611 status

Level 2 Ocean Salinity L2OS v611 status. 12 February 2014. ARGANS & SMOS L2OS ESL. L2OS v61x status. v610 FAT 8/9 October 2013; v611 delivered 12 December 2014 Changes in v611 delivery: multi-threading optimisation global region defined for AUX_DTBXY_ L1 metrics updated galactic maps

mira-whitehead
Download Presentation

Level 2 Ocean Salinity L2OS v611 status

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Level 2 Ocean Salinity L2OS v611 status 12 February 2014 ARGANS & SMOS L2OS ESL

  2. L2OS v61x status • v610 FAT 8/9 October 2013; v611 delivered 12 December 2014 • Changes in v611 delivery: • multi-threading optimisation • global region defined for AUX_DTBXY_ L1 metrics • updated galactic maps • new DAP schema in v61x for faster ESL analysis • Planning: • v612 bug fix delivery due 28/02/2014 • Tools prototyped for summer delivery • On-going L1c v61x metrics analysis • v620...

  3. Optimised multi-threading: stress test results • L2OS v611: • Optimised by skipping coast/land grid points (new Fg_ctrl_ignore flag) & code re-organisation • Now close to reprocessing 12:1 target • Detailed analysis in reports v610 v611

  4. Global region for L1 metrics For each orbit, AUX_DTBXY_ contains per snapshot deltaTB for each region: Regions can be extracted routinely or for metrics:

  5. Updated AUX_GAL2OS • First Stokes/2, old minus new map • Updated GAL2OS with new sky map, without changing model fitting...

  6. Updated AUX_GAL_OS • strong sources delta(new – old) delta(new – old) delta new Sky(PW) – Sky(JT) Difference between WEF smoothing using PW or JT’s method -0.5K to 2.6K near galactic plane, std 0.21K: only significant when WS < 2m/s (rare), and < other errors in SSS retrrieval

  7. Impact of new galactic map on SSS • old GAL_OS & GAL2_OS new GALOS new GAL_OS & GAL2_OS

  8. delta SSS (new – old) • old GAL_OS & GAL2_OS delta(GALOS) delta(new GAL_OS & GAL2_OS) • ~0.2 to 0.3 psu delta from ~0.1 to 0.2K in GAL2OS

  9. GAL_OS applied at low wind speeds • WS delta(new GALOS) count(Fm_gal_noise_error) • WS < 3m/s raises Fm_gal_noise_error in galactic plane

  10. Improved DAP readability v600 v61x n x grid points: ID, lat/long priors & sigmas (4 x 14) posts & sigmas (4 x 14) oor flags (4 x 27) fields (8) n x grid points: ID, lat/long priors & sigmas (4 x 14) posts & sigmas (4 x 14) oor flags (4 x 27) fields (8) Fixed block size grid points Variable block size grid points m x measurements: flags (4 x 30) fields deltaTB (x4) TBgal (x2) n x grid points: ID Variable block size measurements m x measurements: snapshot ID xi, eta flags (1 x 30) fields deltaTB (M1) TBgal (x2) xi/eta can be used to investigate deltaTBs (but need to read L1c to get BTs)

  11. L2OS short-term plan • Tools delivery April/May 2014 (see later ppt) • Tuning L2OS v61x with L1 from metrics, & then from reprocessing • thresholds (outlier detection, RFI, A3TEC, OTT post-processor), L1 flags • improving & cross-verifying RFI detection • Would be good to see impact of L2OS/L1 v61x before defining L2OS v620 • v620 September/October delivery 2014, possible evolution: • refining A3TEC retrieval – eg land • improving & cross-verifying RFI detection • …

More Related