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years and the 1981-2010 average with ± 1 and 2 standard deviation intervals indicated by the shaded areas. Data are from the National Snow and Ice Data Center (NSIDC). Extent was well below average in all seas north of Siberia (Kara, Laptev and East Siberian Seas) but was nearer average in the Beaufort

, Chukchi and western Beaufort seas (Figure 2). Figure 1. September sea ice extent during the satellite era, according to HadISST1.2, with linear trend indicated.   Figure 2. Arctic sea ice extent, September 2018, compared to the record low year of 2012 and the 1981-2010 average, with regions named

Effectiveness of super-hydrophobic radome coating AOKI Hiroka and KAJIWARA Yusuke Observation Division, Atmosphere and Ocean Department, JMA Japan Meteorological Agency 4 th WXRCalMon 9th Nov. 2023 Contents 1. Radome water repellency 2. Super-hydrophobic radome coating 3. Observation 4. Summary

close to the long-term linear trend for the fourth year in succession (Figure 1). Extent was particularly low in the Laptev, Kara, Chukchi and western Beaufort seas (Figure 2). Figure 1: September sea ice extent during the satellite era, according to HadISST1.2, with linear trend indicated. Figure 2

predictability in the climate system Under the WISER initiative, the former issue is being addressed through ENACTS while the latter is being addressed through the SCIPEA project which seeks to strengthen national and regional resources and tools for seasonal forecasts. Figure 2: WISER partnerships

the season.  The table below shows the number of tropical storms, hurricanes, major hurricanes and ACE index observed in recent years.  North Atlantic tropical storm activity (February to January the following year) Year Tropical storms Hurricanes Major hurricanes ACE index 2013 14 2 0 36 2014 8 6 2 67

The following table describes the forecasts that balloonists are able to view at any given time. Examples: 1. at 0830 UTC, the full current AM and PM forecasts will be issued, along with site specific model data for following morning’ 2. by 2030 UTC, the full current PM and tomorrow’s AM forecasts

climate information Effective science communication benefits from being clear and concise and focusing on what we do know rather than what we do not know (Fischhoff, 2013). 0. Listening to the audience to identify the decisions they face 1. Identify the science that is most relevant to those decisions 2

a. At least one set complete set of measurements every 5 minutes b. At least 4 different differential flux channels covering the energy range from 50 keV to 1 MeV c. Relative accuracy of 20% Data must be delivered to the NOAA Space Weather Prediction Center at Boulder, CO 2 Conceptual Solar Wind Sensor

Deeper discovery Making your own weather report 1 2 3 If your group is new to weather reporting, explain that a weather forecast is a statement saying what the weather will be like the next day or for the next few days. Tell the group that they will have a go at making a weather forecast