Insights into ECMWF's S2S Database and Usage Statistics
Delve into the latest updates and statistics regarding ECMWF's Subseasonal-to-Seasonal (S2S) Database, including news since September 2018, current status, cooperation with data providers, usage statistics, activity reports, and future plans discussed in the S2S steering committee meeting on April 1, 2019.
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Update on S2S Database @ ECMWF Manuel Fuentes Products Team + Frederic Vitart S2S steering committee Reading 1.4.2019
Outline News since September 2018 Current status Usage statistics Publications Further Log Analytics Update on Ocean variables Future Plans S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF - News since September 2018 https://confluence.ecmwf.int/display/S2S/News 05-09-2018 - M t o-France (lfpw) reforecast update 25-10-2018 - UK Met Office (egrr) reforecast update Nov 2018 S2S Data providers teleconference 06-12-2018 - S2S Tropical Cyclone Tracks available 28-03-2019 - UKMO model system change S2S steering committee Reading 1.4.2019
S2S Database Cooperation with Data Providers Teleconference with Data Providers Nov 2018 https://confluence.ecmwf.int/display/S2S/S2S+archive+status Confirm all use Confluence, JIRA + checking tools Good level of cooperation achieved with minimum data gaps S2S history page https://apps.ecmwf.int/datasets/history/s2s-prod Some minor operational issues https://confluence.ecmwf.int/display/S2S/Support+overview Providers are asked to try to automate data checking as much as possible to minimise necessary effort on both sides Please, let us know of any planned changes! S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Status & Usage Statistics Contents Archive size: 98 TiB (76 TiB reforecasts, 22 TiB fc) Number of fields > 2 billion Activity Number of active users: 1094 Delivered data volume: 496.5 TiB Number of retrieved fields: 12,332,520,642 Number of requests: 9,709,987 Lots of data on disk: +90% reforecasts (70 TiB), 30% fc (7 TiB) https://confluence.ecmwf.int/display/S2S/Usage+statistics S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Activity Retrieved data volumes Volume of data retrieved from MARS before post-processing vs volume of data delivered to users after post-processing. S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Number of requests S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Number of Users S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF - Users per Country Users per country only countries with at least 5 active users are shown S2S steering committee Reading 1.4.2019
S2S Publications 2017: 15 2018: 41 2019: 5 61 publications TOPICS: Drought 2 MJO and BSISO 10 Flooding 2 Stratosphere 4 Heat waves 4 Precip (inc. monsoons) 13 Tropical cyclones 1 2mtm 4 Land surface 2 Teleconnections 3 Other extremes 2 Sea ice 3 Extratropics/Z500 2 Weather regimes 5 Multimodel 2 All Extremes 17 Verification method 1 Atmospheric rivers 5 S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF - Further Log Analytics Using Big Data Analytics tools such Splunk we are able to get a better insight of the utilization of data https://splunk.ecmwf.int/en-GB/app/ecmwf_mars/mars_s2s_popularity https://splunk.ecmwf.int/ Most popular parameters Most popular types of level (pl, single/sfc, pt) Most popular levels Most popular origins Reforecasts vs forecast S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Popular parameters S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Types of level S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Popular levels S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Popular providers S2S steering committee Reading 1.4.2019
S2S Database @ ECMWF Reforecast (enfh) vs fc (enfo) S2S steering committee Reading 1.4.2019
S2S Database - Ocean variables Spent (long) time trying to find encoding in CF/NetCDF to archive in MARS Unable to provide aggregation service as with GRIB Q4 2018 decided to archive Ocean parameters in GRIB Edition 2 Proposals made to WMO GRIB technical committee December 2018, to appear on manual on codes May 2019 Support for 7 (of 9) parameters planned Q2 2019 2 remaining parameters will follow once approved later this year (Q3) by WMO GRIB technical committee Wiki pages are being prepared for providers how to encode the new parameters in WMO compliant GRIB2 format Sample data will be also available S2S steering committee Reading 1.4.2019
S2S Database Future Plans More contributing models: Expected soon GMAO by NASA Interest from IITM (India), no further contact ECMWF fund one position for S2S (and TIGGE) Database activities ECMWF model change to use ERA5 from 46r1: June 2019 Realtime Pilot projects 27 proposals, 18 identified as potentially fulfilling the requirements ECMWF Data Centre move to Bologna (Q1 2020) Importance of data synchronization with CMA S2S steering committee Reading 1.4.2019
Conclusions ECMWF continued commitment to support S2S through Phase II Very popular dataset One extra post funded to strengthen the Products team Ocean variables Q2 2019 ECMWF model use ERA5 Q2 2019 Realtime Pilot Projects S2S steering committee Reading 1.4.2019
Thank you! S2S steering committee Reading 1.4.2019
S2S Database - Ocean parameters 9 parameters agreed: Sea surface salinity [psu] Depth of 20C isotherm [m] Mean sea water temperature in upper 300m [K] Average salinity in upper 300m [psu] Ocean current zonal component [m s-1] Ocean current meridional component [m s-1] Sea surface height [m] Mixed-layer depth [m] Sea ice thickness [m] WMO proposals related to (1), (4) submitted and accepted (codes available in May) 2 more WMO proposals needed related to (1) and (8); rather minor WMO table updates which were not obvious before 1. 2. 3. 4. 5. 6. 7. 8. 9. S2S steering committee Reading 1.4.2019
