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  "data_type": "Density Profile Image",
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  "data_type": "Density Profile Image",
            
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  "dataset_end_date": "2025-02-13",
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  "dataset_end_date": "2025-02-14",
            
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  "dataset_start_date": "2025-02-04",
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  "dataset_start_date": "2025-02-04",
            
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  "name": "2025_february_density_tucu",
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  "name": "2025_february_density_tucu",
            
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  "notes": "Data of Ionosonde - Density Profile",
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  "notes": "Data of Ionosonde - Density Profile",
            
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  "organization": {
            
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    "approval_status": "approved",
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    "approval_status": "approved",
            
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    "created": "2024-06-07T21:05:19.808275",
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    "created": "2024-06-07T21:05:19.808275",
            
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    "description": "The ionosondes provide virtual height information 
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    "description": "The ionosondes provide virtual height information 
            
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and density profile estimates from the bottomside ionosphere (also by 
20
and density profile estimates from the bottomside ionosphere (also by 
            
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bistatic soundings) with a cadence as small as 1 min, and follow the 
21
bistatic soundings) with a cadence as small as 1 min, and follow the 
            
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twilight and nighttime E-region to sounding frequencies of less than 
22
twilight and nighttime E-region to sounding frequencies of less than 
            
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0.5 MHz when implemented with suitable antennas. They also provide 
23
0.5 MHz when implemented with suitable antennas. They also provide 
            
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information about drifts, ionospheric tilts, and the \u201crms\u201d 
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information about drifts, ionospheric tilts, and the \u201crms\u201d 
            
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amplitude and spectral index of density fluctuations by a phase 
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amplitude and spectral index of density fluctuations by a phase 
            
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structure function method. Five ionosondes with co-located flux-gate 
26
structure function method. Five ionosondes with co-located flux-gate 
            
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magnetometers will be placed equidistantly and nearly aligned with the 
27
magnetometers will be placed equidistantly and nearly aligned with the 
            
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magnetic flux tube intersecting the magnetic equator at 70\u00b0 W. In 
28
magnetic flux tube intersecting the magnetic equator at 70\u00b0 W. In 
            
29
our plan, one ionosonde will be installed at Tabatinga, Brazil located 
29
our plan, one ionosonde will be installed at Tabatinga, Brazil located 
            
30
near Leticia, Colombia and another near Antofagasta, Chile, to observe 
30
near Leticia, Colombia and another near Antofagasta, Chile, to observe 
            
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the E- and F-region densities. Field lines intersecting 100 km 
31
the E- and F-region densities. Field lines intersecting 100 km 
            
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altitude over these two stations map to the equator at 250 and 260 km 
32
altitude over these two stations map to the equator at 250 and 260 km 
            
33
respectively. A third ionosonde will be placed very close to the 
33
respectively. A third ionosonde will be placed very close to the 
            
34
magnetic equator in Puerto Maldonado. Two more ionosonde will be 
34
magnetic equator in Puerto Maldonado. Two more ionosonde will be 
            
35
located at 19-20\u00b0 away from the magnetic equator, near the crest 
35
located at 19-20\u00b0 away from the magnetic equator, near the crest 
            
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caused by the equatorial \u2018fountain\u2019. Data from all 5 
36
caused by the equatorial \u2018fountain\u2019. Data from all 5 
            
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ionosonde, magnetic fields from the co-located magnetometers, TEC 
37
ionosonde, magnetic fields from the co-located magnetometers, TEC 
            
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values from the nearby GPS receivers, and the Kalman filter-based 
38
values from the nearby GPS receivers, and the Kalman filter-based 
            
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assimilation will provide several geophysical parameters (winds, 
39
assimilation will provide several geophysical parameters (winds, 
            
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electric fields and densities) from the E and F regions, and will also 
40
electric fields and densities) from the E and F regions, and will also 
            
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fill in the regions between the sites. This will be the first time 
41
fill in the regions between the sites. This will be the first time 
            
42
that a numerical model of the equatorial ionosphere can be fully 
42
that a numerical model of the equatorial ionosphere can be fully 
            
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constrained by data collected on both sides of the magnetic equator 
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constrained by data collected on both sides of the magnetic equator 
            
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and for a range of altitudes that includes the E region",
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and for a range of altitudes that includes the E region",
            
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