Year of Polar Prediction (YOPP) coordinated observing period (2017–2019)

1. Polar Prediction Project (PPP) is proposed

   Jun 12, 2012Labels: Polar Prediction, WMO WWRP

   • AWI EPIC
   • PPP Site

2. PPP begins as a 10-year WWRP project

   Jan 1, 2013Labels: Polar Prediction, WMO WWRP

   • PPP Site
   • PolF 2021

3. YOPP concept is formalized in an implementation plan

   Jan 1, 2016Labels: YOPP Implementation, PPP Steering

   • AWI EPIC

4. YOPP plans define special observing periods

   Jan 23, 2017Labels: Special Observing, YOPP

   • WCRP News
   • PPP SOPs

5. YOPP is officially launched in Geneva

   May 15, 2017Labels: YOPP Launch, Geneva

   • ECMWF News
   • PPP Site

6. ECMWF begins producing the YOPP dataset

   May 15, 2017Labels: ECMWF, YOPP dataset

   • ECMWF News
   • ECMWF Dataset

7. Arctic winter SOP1 intensifies observations

   Feb 1, 2018Labels: Arctic SOP1, radiosondes

   • PPP SOPs
   • ESSD 2024

8. Arctic summer SOP2 adds enhanced measurements

   Jul 1, 2018Labels: Arctic SOP2, supersites

   • WMO News
   • PPP SOPs

9. Antarctic SOP expands focus to the Southern Hemisphere

   Nov 16, 2018Labels: Antarctic SOP, Southern Hemisphere

   • PPP SOPs
   • WCRP News

10. YOPP enters its consolidation phase

    Jun 1, 2019Labels: YOPP Consolidation, data release

    • ECMWF Webinars
    • AWI EPIC

11. YOPP core phase concludes after two years

    Jun 30, 2019Labels: YOPP Core, 2017 2019

    • PPP Site
    • ECMWF Webinars

12. YOPPsiteMIP standardizes supersite observations for evaluation

    Jul 2, 2024Labels: YOPPsiteMIP, supersite MODF

    • ESSD 2024