Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU
Abstract Modeling the space weather conditions for a near‐Earth environment depends on a proper representation of magnetic fields on the Sun. There are discussions in the community with respect to the value of observations taken at several Lagrangian points (L1–L5) in the Sun‐Earth system. Observati...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-07-01
|
| Series: | Space Weather |
| Online Access: | https://doi.org/10.1029/2020SW002448 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841536449077313536 |
|---|---|
| author | A. A. Pevtsov G. Petrie P. MacNeice I. I. Virtanen |
| author_facet | A. A. Pevtsov G. Petrie P. MacNeice I. I. Virtanen |
| author_sort | A. A. Pevtsov |
| collection | DOAJ |
| description | Abstract Modeling the space weather conditions for a near‐Earth environment depends on a proper representation of magnetic fields on the Sun. There are discussions in the community with respect to the value of observations taken at several Lagrangian points (L1–L5) in the Sun‐Earth system. Observations from a single (e.g., Earth/L1) vantage point are insufficient to characterize rapid changes in magnetic field on the far side of the Sun. Nor can they represent well the magnetic fields near the solar poles. However, if the changes in sunspot activity were moderate, how well would our predictions of the solar wind based on a single viewing point work? How much improvement could we see by adding magnetograph observations from L5, L4, and even L3? Here, we present the results of our recent modeling, which shows the level of improvement in forecasting the properties of the solar wind at Earth made possible by using additional observations from different vantage points during a period of moderate evolution of sunspot activity. As an example, we also show the improvements to the solar wind forecast from adding a single observation of the southern polar area from out‐of‐ecliptic spacecraft at −30° heliographic latitude vantage point. |
| format | Article |
| id | doaj-art-ec35e39344a5415baa4a253223b2722e |
| institution | Kabale University |
| issn | 1542-7390 |
| language | English |
| publishDate | 2020-07-01 |
| publisher | Wiley |
| record_format | Article |
| series | Space Weather |
| spelling | doaj-art-ec35e39344a5415baa4a253223b2722e2025-01-14T16:30:52ZengWileySpace Weather1542-73902020-07-01187n/an/a10.1029/2020SW002448Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AUA. A. Pevtsov0G. Petrie1P. MacNeice2I. I. Virtanen3National Solar Observatory Boulder CO USANational Solar Observatory Boulder CO USANASA Goddard Space Flight Center Greenbelt MD USAThe Space Physics and Astronomy Research Unit University of Oulu Oulu FinlandAbstract Modeling the space weather conditions for a near‐Earth environment depends on a proper representation of magnetic fields on the Sun. There are discussions in the community with respect to the value of observations taken at several Lagrangian points (L1–L5) in the Sun‐Earth system. Observations from a single (e.g., Earth/L1) vantage point are insufficient to characterize rapid changes in magnetic field on the far side of the Sun. Nor can they represent well the magnetic fields near the solar poles. However, if the changes in sunspot activity were moderate, how well would our predictions of the solar wind based on a single viewing point work? How much improvement could we see by adding magnetograph observations from L5, L4, and even L3? Here, we present the results of our recent modeling, which shows the level of improvement in forecasting the properties of the solar wind at Earth made possible by using additional observations from different vantage points during a period of moderate evolution of sunspot activity. As an example, we also show the improvements to the solar wind forecast from adding a single observation of the southern polar area from out‐of‐ecliptic spacecraft at −30° heliographic latitude vantage point.https://doi.org/10.1029/2020SW002448 |
| spellingShingle | A. A. Pevtsov G. Petrie P. MacNeice I. I. Virtanen Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU Space Weather |
| title | Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU |
| title_full | Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU |
| title_fullStr | Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU |
| title_full_unstemmed | Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU |
| title_short | Effect of Additional Magnetograph Observations From Different Lagrangian Points in Sun‐Earth System on Predicted Properties of Quasi‐Steady Solar Wind at 1 AU |
| title_sort | effect of additional magnetograph observations from different lagrangian points in sun earth system on predicted properties of quasi steady solar wind at 1 au |
| url | https://doi.org/10.1029/2020SW002448 |
| work_keys_str_mv | AT aapevtsov effectofadditionalmagnetographobservationsfromdifferentlagrangianpointsinsunearthsystemonpredictedpropertiesofquasisteadysolarwindat1au AT gpetrie effectofadditionalmagnetographobservationsfromdifferentlagrangianpointsinsunearthsystemonpredictedpropertiesofquasisteadysolarwindat1au AT pmacneice effectofadditionalmagnetographobservationsfromdifferentlagrangianpointsinsunearthsystemonpredictedpropertiesofquasisteadysolarwindat1au AT iivirtanen effectofadditionalmagnetographobservationsfromdifferentlagrangianpointsinsunearthsystemonpredictedpropertiesofquasisteadysolarwindat1au |