Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation...
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![Page 1: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/1.jpg)
Space Science at ASTRA
Geoff Crowley
Atmospheric & Space Technology Research Associates
www.astraspace.net
Simulation Data Assimilation
Data Analysis Instrumentation
![Page 2: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/2.jpg)
Space Science at ASTRA
Simulation: ASPEN-TIMEGCM, ASPEN-Mars
Data Assimilation: IDA4D
Data Analysis: •Satellite Data (TIMED/GUVI, GRACE, CHAMP)•Ground-based (ISRs, TIDDBIT, etc)
Instrumentation:•TIDDBIT HF Doppler Radar System•GUVITO - miniaturized GUVI (with APL)•CASES - GPS dual frequency receiver (with Cornell)
![Page 3: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/3.jpg)
April 20, 2023
IDA4D: Ionospheric Research IDA4D: Ionospheric Research Through Data AssimilationThrough Data Assimilation
3DVAR Objective Analysis Method (Meteorology)
Well Validated - Based on 15 Years of 2D-3D Tomographic Research
Designed for Adaptation and Configuration Based on Science Problem
Designed to Easily Add New Data Sources, Models, Methods
Non-linear iterative estimator – Solves for log of density -
positive solutions– Allows for non-linear data
sources – 1356 EUV currently ingested
and being tested
IDA3DData
Model
UserConfig
![Page 4: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/4.jpg)
Scan operation of the GUVI instrument on TIMED. The slit dimension is along the satellite track and is subdivided into 14 pixels. The cross-track scan is initiated every 15 s.
![Page 5: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/5.jpg)
Nightside Observations: Nightside Observations: February 2, 2002February 2, 2002
Can the TIME-GCM (or any model) Predict This?
![Page 6: Space Science at ASTRA Geoff Crowley Atmospheric & Space Technology Research Associates Simulation Data Assimilation Data Analysis Instrumentation.](https://reader035.fdocuments.net/reader035/viewer/2022062408/56649f225503460f94c3aba0/html5/thumbnails/6.jpg)
9-Day Waves In GUVI Composition9-Day Waves In GUVI Composition
Latitudes -90 to +90°