WELCOME to the GRIMS (Global and Regional Ionosphere Monitoring
System) program. This system is designed to provide continuous monitoring of the ionosphere, detecting and tracking
any anomalies on a daily basis. It is a critical tool for scientists and researchers who rely on accurate and
up-to-date information about the state of the ionosphere.
THE GRIMS program comprises two main modules: the Global and Regional
programs. The Global program is responsible for monitoring the ionosphere on a global scale, collecting data from
around the world to produce a comprehensive overview of ionospheric activity. The Regional program, on the other
hand, focuses on specific areas of interest (Currently only Turkey), providing detailed information about the
ionosphere in specific regions.
ONE of the primary benefits of the GRIMS program is the ability to
access anomaly maps. These maps are generated through various processes, providing valuable insight into the state
of the ionosphere at any given time. From the GRIMS menu, you can easily access these maps and stay informed about
the latest developments in ionospheric activity.
Check out the Change Log below for recent changes.
GRIMS is the product of a collaborative effort between individuals from various
scientific disciplines. The system undergoes constant updates and improvements to ensure its accuracy and
effectiveness. Currently, a live version of the system is available for testing, development, and ongoing updates.
Team Members:
Prof. Dr. Salih ALCAY (Necmettin Erbakan University)
Assist. Prof. Dr. Behlül Numan ÖZDEMİR (Konya Technical University)
Assoc. Prof. Dr. Sermet ÖĞÜTCÜ (Necmettin Erbakan University)
Assoc. Prof. Dr. Ahmet PEKGÖR (Necmettin Erbakan University)
Prof. Dr. Gopi Krishna SEEMALA (Indian Institute of Geomagnetism)
Lecturer Gurkan ÖZTAN (Nigde Omer Halisdemir University)
For further details:
Ozdemir, B.N., Alcay, S., Ogutcu, S., Pekgor, A., Seemala, G.K., Oztan, G. GRIMS: global and regional ionosphere monitoring system. GPS Solutions 28, 154 (2024). https://doi.org/10.1007/s10291-024-01702-x
The current version of GRIMS provides the following tasks:
- Daily presentation of global anomaly maps using rapid CODE GIMs until indices/parameters are published from
OMNIWeb. Since the OMNIWeb data arrives with a delay, there is a section where the user can review the current
indices/parameters from other data sources. Then the presentation of hourly anomaly maps based on the final
CODE-GIMs with indices/parameters. Thus, it is possible to observe anomaly regions that may be caused by many
factors such as space weather conditions.
- Observing the global anomaly regions and station-based details.
- The use of suitable IGS stations from regions where the anomaly is above 5 TECU (above the accuracy level of
CODE-GIM (~2/3 TECU)) and lasts longer than 8 hours (abnormal day condition stated by Liu et al. (2009)).
- Identification of stations with the highest anomaly in the northern and southern hemisphere high latitude,
mid-latitude, and equatorial regions.
- Obtaining station-based VTEC values, and thus graphical presentation of anomalies with higher accuracy using the
Moving Average (MA), Highest Density Interval (HDI), and Autoregressive Integrated Moving Average (ARIMA)
methods.
- Presentation of daily Jason Altimeter VTEC maps for ocean regions.
- Daily presentation of regional anomaly maps using CORS and IGS stations.
- The user has the option to download global and regional anomaly maps and various data. Additionally, they can
request data processing for their desired date and have the results sent to their provided email addresses.
The system is currently undergoing continuous development, and we highly value user feedback. We appreciate the input provided in advance.
CONTACT
For any inquiries, questions, or comments, please feel free to contact us via email at support@online-grims.com.
We will do our best to respond to your message promptly and provide any assistance you may need.
CHANGE LOG
14 Jul 2024
- Quick Fix : The noise issue in regional anomaly maps has been resolved. Several problematic stations have been removed from the process.
03 Jun 2024
- Several enhancements were implemented on both the frontend and backend, resulting in a noticeable improvement in system stability.
- Positive and negative anomaly maps are now synchronized.
- System updates have been completed, and the Data Request module now processes and delivers data to users more quickly.
16 Mar 2024
- The date selection has been limited to between 2023-01-01 and the last data day.
- A problem related to the transition animation of anomaly maps when the date is changed quickly has been fixed.
- A minor error that occurred during the downloading of Rapid and Final data has been corrected.
- Various frontend and backend improvements were made, increasing system stability.
17 Feb 2024
- Fixed a regional CORS download issue.
- Added source links for thresholds.
- Introduced an "Active Days" button on the homepage for conducted studies.
- Included GRIMS process results for "Active Days".
- Set the data start date to January 1st, 2023.
- Revised the global section to display the previous 10 days' JSON data alongside the selected date in a 10+1
format.
- Added index thresholds to the graphs.
- Combined the Bx, By, Bz graphs into a single merged graph.
- Adjusted the sizes of the graphs on the index graph page for better readability.
- Made various front-end and back-end improvements.
- Relocated the Change-Log, Contact, and Disclaimer sections under the Home page.
16 Dec 2023
- Quick Fix : The issue with anomaly maps loading slowly or not loading at all due to a slow internet connection
has been addressed and improved.
07 Nov 2023
- Quick Fix : An issue with downloading grid data(Regional Turkey Module) has been resolved.
15 Sept 2023
- The entire website has undergone a comprehensive renewal.
- A new section for requesting data has been introduced.
- The tab "Parameters From Other Data Sources" is now live and accessible.
- Users can now download anomaly maps along with their corresponding grid data.
- The website's disclaimer has been thoroughly updated.
- We've implemented numerous enhancements and updates to both the front and back ends of the website.
23 Jun 2023
- The server infrastructure change was completed ahead of schedule. The system now operates more stable and
faster.
18 Jun 2023
- Station-based algorithms have been improved.
- Infrastructure change is planned in July. At the end of this process, a noticeable improvement in page access
speeds will be achieved.
18 May 2023
- The Global Monitoring page has been
redesigned.
- Enhancements have been made to the algorithms of applications operating in the background.
- Map of stations affected by the anomaly added.
09 May 2023
- Regional Module updated; archived
test data uploaded.
- Background processes improved.
- Algorithm reworked and accelerated.
- File management structure changed.
02 April 2023
- Improved design and background processes.
01 April 2023
- Online-GRIMS has been launched, and the live test version of the
system is now available, including archived data.
06 December 2023
- Following preliminary testing, the first case study was carried out.
24 November 2022
- Development of the Regional Ionosphere Monitoring component of the software has commenced for Turkey,
utilizing
CORS-TR (Continuously Operating Reference Stations, TUSAGA-AKTIF) as a key component.
08 April 2022
- GRIMS software development has begun with Global Ionosphere Monitoring.
DISCLAIMER
Information on www.grims-online.com is for informational, scientific, and
educational use only. By using the site, you accept this disclaimer.
Content Updates: Information may change without notice and may not
always be current or accurate.
Accuracy & Reliability: While we strive for accuracy,
information regarding ionospheric anomalies may have errors or omissions. We base our content on available
research, but it may not always be complete or reliable.
Third-Party Links: We include third-party links for convenience; we
don't endorse or guarantee their accuracy. Visiting external links is at your own risk.
Research & Interpretation: Content may involve research and
interpretations by various contributors. Please critically evaluate the information and consult multiple
sources.
Indemnification: By using the site, you agree to indemnify us from
any claims or losses arising from your use of our information.
Disclaimer Changes: This disclaimer can change without notice.
Please check for updates.
Agreement: By using GRIMS, you agree to this disclaimer. If you
disagree, please avoid using the site.
Last Updated: September 11, 2023
Questions or Concerns: Contact support@online-grims.com.
