Studies of the F-Region by the Incoherent Backscatter Method
The Millstone Hill radar facility operated by M.I.T. Lincoln Laboratory has made measurements of the distribution of electrons in the F-region of the ionosphere by observing the weak incoherent backscatter signal. These measurements were first made early in 1960 and were continued throughout 1961 on...
| Main Author: | |
|---|---|
| Format: | Technical Report |
| Language: | en_US |
| Published: |
Haystack Observatory
2015
|
| Online Access: | http://hdl.handle.net/1721.1/97662 |
| _version_ | 1826208754695143424 |
|---|---|
| author | Evans, J. V. |
| author_facet | Evans, J. V. |
| author_sort | Evans, J. V. |
| collection | MIT |
| description | The Millstone Hill radar facility operated by M.I.T. Lincoln Laboratory has made measurements of the distribution of electrons in the F-region of the ionosphere by observing the weak incoherent backscatter signal. These measurements were first made early in 1960 and were continued throughout 1961 on a routine basis at least once a week. This report presents alI the electron density profiles measured up to the end of 1961. Results of spectral analyses of the signals made early in 1962 are also given. The distribution of electrons above the peak of the F-region has been a subject of special study. On the basis of the results obtained to date the conclusions reached are: (a) the scale height of the electron density increases with height, (b) the ion temperature is not very dependent on height, though it does show a marked diurnal variation, (c) the election-to-ion temperature ratio is 1:1 during the hours of darkness, but during the daytime it increases too peak value ~1.6:1 around noon and (d) the scattering cross section for the electrons is close to the expected value when alIowance is made for (c). |
| first_indexed | 2024-09-23T14:11:14Z |
| format | Technical Report |
| id | mit-1721.1/97662 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:11:14Z |
| publishDate | 2015 |
| publisher | Haystack Observatory |
| record_format | dspace |
| spelling | mit-1721.1/976622019-04-12T12:50:45Z Studies of the F-Region by the Incoherent Backscatter Method Evans, J. V. The Millstone Hill radar facility operated by M.I.T. Lincoln Laboratory has made measurements of the distribution of electrons in the F-region of the ionosphere by observing the weak incoherent backscatter signal. These measurements were first made early in 1960 and were continued throughout 1961 on a routine basis at least once a week. This report presents alI the electron density profiles measured up to the end of 1961. Results of spectral analyses of the signals made early in 1962 are also given. The distribution of electrons above the peak of the F-region has been a subject of special study. On the basis of the results obtained to date the conclusions reached are: (a) the scale height of the electron density increases with height, (b) the ion temperature is not very dependent on height, though it does show a marked diurnal variation, (c) the election-to-ion temperature ratio is 1:1 during the hours of darkness, but during the daytime it increases too peak value ~1.6:1 around noon and (d) the scattering cross section for the electrons is close to the expected value when alIowance is made for (c). 2015-07-02T18:49:36Z 2015-07-02T18:49:36Z 1962-07-24 Technical Report http://hdl.handle.net/1721.1/97662 en_US Millstone Technical Reports;274 application/pdf Haystack Observatory |
| spellingShingle | Evans, J. V. Studies of the F-Region by the Incoherent Backscatter Method |
| title | Studies of the F-Region by the Incoherent Backscatter Method |
| title_full | Studies of the F-Region by the Incoherent Backscatter Method |
| title_fullStr | Studies of the F-Region by the Incoherent Backscatter Method |
| title_full_unstemmed | Studies of the F-Region by the Incoherent Backscatter Method |
| title_short | Studies of the F-Region by the Incoherent Backscatter Method |
| title_sort | studies of the f region by the incoherent backscatter method |
| url | http://hdl.handle.net/1721.1/97662 |
| work_keys_str_mv | AT evansjv studiesofthefregionbytheincoherentbackscattermethod |