![jhelioviewer jhelioviewer](https://sci.esa.int/documents/33795/35391/1567218448341-SDO_fireworks_20101207_screen.jpg)
Once an interesting event has been identified, science quality data can be accessed for in-depth analysis.
Jhelioviewer software#
The software integrates solar event data and a timeline display. With JHelioviewer, users can visualise the Sun for any time period between September 1991 and today they can perform basic image processing in real time, track features on the Sun, and interactively overlay magnetic field extrapolations. The JHelioviewer software is open source, platform independent, and extendable via a plug-in architecture.
![jhelioviewer jhelioviewer](https://i1.rgstatic.net/publication/45855714_JHelioviewer_-_Visualizing_large_sets_of_solar_images_using_JPEG_2000/links/09e4150a3a4d5ccae6000000/largepreview.png)
The JPEG 2000 standard offers useful new features that facilitate the dissemination and analysis of high-resolution image data and offers a solution to the challenge of efficiently browsing petabyte-scale image archives. Since the first release of JHelioviewer in 2009, the scientific functionality of the software has been extended significantly, and the objective of this paper is to highlight these improvements. To address these challenges, we have developed JHelioviewer, a visualisation tool for solar data based on the JPEG 2000 compression standard and part of the open source ESA/NASA Helioviewer Project. From a scientist’s perspective this poses three problems: accessing, browsing, and finding interesting data as efficiently as possible. This agrees with an earlier finding that even if a long-term trend. We do not find a significant variation in either sunspot physical properties or distribution of sunspot umbral area. We analyze umbral area, magnetic field, and umbral intensity of the sunspots during the rising phase of cycle 24.
Jhelioviewer movie#
In particular, the large volume of SDO data presents challenges the data are available only from a few repositories, and full-disk, full-cadence data for reasonable durations of scientific interest are difficult to download, due to their size and the download rates available to most users. The movie was generated using Jhelioviewer. Solar and Heliospheric Observatory, SOHO), multiple viewpoints (Solar TErrestrial RElations Observatory, STEREO), and returning large amounts of data (Solar Dynamics Observatory, SDO). Solar observatories are providing the world-wide community with a wealth of data, covering wide time ranges (e.g.