Heliospheric Weather Expert Service Centre - Statistical Products

The H-ESC statistical products provide information on longer term analysis and trends of parameters produced or used within the H-ESC. The list of parameters currently available is given in the table below.

CME Statistics

This section provides information on the statistical distribution of the CME characteristics identified by the UK Met Office as part of the H-ESC activities. This information can be useful in determining event probabilities and understanding selection effects in the observations. Currently information is provided on the speed, longitude and width of the identified CMEs.


SW Speed

SW Density

SW Pressure

SW Temp

SW Mach #

SW Beta

These upstream solar wind parameters help to assess the driving input for geomagnetic activity. For example they can be used to identify periods of high speed solar wind streams. A value range can be entered and used to generate a set of time intervals where the user condition is satisfied. We currently use 5-minute OMNI where the data has been time shifted to the bow shock nose.


|IMF|

IMF Bx

IMF By

IMF Bz

The upstream Interplanetary Magnetic Field (IMF) is useful for determining connectivity. A value range can be entered and used to generate a set of time intervals where the user condition is satisfied. As with the plasma data these data are time shifted to the bow shock nose.

SW speed * IMF Bz

This option provides the product of the solar wind speed and IMF Bz. This can be a good indicator of the solar wind drivers of geomagnetic activity. A value range can be entered and used to generate a set of time intervals where the user condition is satisfied.

P > 10 MeV
P* > 10 MeV

The solar energetic particle environment is an important measurement for diagnosing possible space weather effects on spacecraft systems (such as SEU and latch-ups). The amount of time spent above one of five activity thresholds can be calculated.

The energetic particle data from OMNI currently is only available to March 2020. The P* > 10 MeV option makes use of more recent solar energetic particle data from the UKMO SEP/E product.

For the on-demand generated plots some simple tailoring of the output is available through the options menu accessed from the show options button. These include the ability to identify periods outside rather than inside the supplied range, outputing intervals in VOTable format, displaying data as a fucntion of solar rotation or switching to another parameter keeping the same time interval.

SWE Portal > H-ESC > HPARC > HPARC/ST

This web page forms part of the European Space Agency's network of space weather services and service development activities, and is supported under ESA contract number 4000134036/21/D/MRP. For further product related information or enquiries contact the helpdesk. E-mail: helpdesk.swe@esa.int All publications and presentations using data obtained from this site should acknowledge RAL Space and The ESA Space Safety Programme. For further information about space weather in the ESA Space Safety Programme see: https://www.esa.int/spaceweather Access the ESA SWE Portal here: https://swe.ssa.esa.int.