Welcome to GRIMS

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) Assoc. Prof. Dr. Sercan BÜLBÜL (Konya Technical University) Assoc. Prof. Dr. Muhammed Fahri ÜNLERŞEN (Necmettin Erbakan 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.

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.