1 / 6

EUMETSAT and Radio Occultations

EUMETSAT and Radio Occultations. Christian Marquardt, Axel von Engeln, Christophe Accadia. CHAMP. GRACE. Metop-B. Metop-C. Metop-A. Background: Radio Occultation Missions. SAC/C. COSMIC. TerraSAR-X. OCEANSAT-2. KOMPSAT-5. Megha-Tropiques. Planned. SAC/D. Research. Best Effort.

gustav
Download Presentation

EUMETSAT and Radio Occultations

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. EUMETSAT and Radio Occultations Christian Marquardt, Axel von Engeln, Christophe Accadia

  2. CHAMP GRACE Metop-B Metop-C Metop-A Background: Radio Occultation Missions SAC/C COSMIC TerraSAR-X OCEANSAT-2 KOMPSAT-5 Megha-Tropiques Planned SAC/D Research Best Effort TanDEM-X Operational COSMIC-II NOW

  3. EUMETSAT and Radio Occultations - Present • GRAS as operational RO mission for 15+ years • State-of-the-art RO instrument • 650 occultations / day / instrument (sustained) • With launch of Metop B (early 2012) • 2 GRAS instruments in orbit • as long as GRAS/Metop-A can be operated (or until Metop-C launch) • GRAS Ground Support Network (service provided by ESA/ESOC) • high rate fiducial ground network (40 stations, mostly available on IGS as well) • GPS orbits and clocks in NRT (latency 2 hrs) • operational availability (≥ 95%), latency (≤ 15 mins obs) and 24/7 support • navigation bit network under consideration • GSN raw data provided to UCAR and NSPO, used for operational COSMIC processing

  4. EUMETSAT and Radio Occultations - Future • Post-EPS: The follow-on system for the Metop sequence of satellites (EPS) • User-driven requirements process • takes into account NWP, nowcasting, climate, atmospheric chemistry, oceanography, hydrology and EPS continuation • defines priority rank of possible missions (process still ongoing) • Phase 0 (mission analysis) completed in 2009 • Phase A (feasibility studies) 2009 - 2011 • Phase B (preliminary definition) 2011 – 2013 • Phase C/D (detailed definition & production) 2014+ • Need date 2020

  5. EUMETSAT and Radio Occultations - Future • Current mission prioritisation (2008, but still valid after 2009 discussions): • Remaining 16 candidate missions are of ‘Medium’ or ‘Low’ rank • Take into account that VII and SCA are also aiming at nowcasting, oceanography and hydrology applications (which RO doesn’t serve that well). (see http://www.eumetsat.int/groups/pps/documents/document/pdf_peps_pard.pdf for details)

  6. EUMETSAT and Radio Occultations - Future • Post-EPS mission requirements for Radio Occultation • GRAS performance as baseline / improvements considered • GPS, Galileo, possibly GLONASS (TBC) and BEIDOU / COMPASS (TBC) • Exploiting new civil frequencies • Raw sampling / open loop • Space weather monitoring (on opportunistic basis) • Early stage of definition - Instrument and mission concepts will be further analysed during phase A of the Post-EPS process.

More Related