# Polar Cap Patches Scaling Properties: Insights from Swarm Data
## 4 Discussion and Conclusions
Available online: [[https://swarmhandbook.earth.esa.int/article/introduction/#:-text=Level%202%20](https://swarmhandbook.earth.esa.int/article/introduction/#:-text=Level%202%20) products%20 are%20 typically,well%20 as%20 ground%2 Dbased%20 observations]([https://swarmhandbook.earth.esa.int/article/introduction/#:-text=Level%202%20](https://swarmhandbook.earth.esa.int/article/introduction/#:-text=Level%202%20) products%20 are%20 typically,well%20 as%20 ground%2 Dbased%20 observations) (accessed on 31 August 2023). * _[PERSON] and [PERSON] (1995)_ [PERSON]; [PERSON] Adaptive identification and characterization of polar ionization patches. _J. Geophys. Res. Space Phys._**1995**, _100_, 23819-23827. [CrossRef]
* _[PERSON] et al. (2018)_ [PERSON]; [PERSON]; [PERSON] Annual Occurrence Rates of Ionospheric Polar Cap Patches Observed Using Swarm. _J. Geophys. Res. Space Phys._**2018**, _123_, 2327-2335. [CrossRef]
* _[PERSON] et al. (2020)_ [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Occurrence Distribution of Polar Cap Patches: Dependences on UT, Season and Hemisphere. _J. Geophys. Res. Space Phys._**2020**, _126_, e2020J A028538. [CrossRef]
* _[PERSON] et al. (2019)_ [PERSON]; [PERSON]; [PERSON]; [PERSON] Hemispherical Shifted Symmetry in Polar Cap Patch Occurrence: A Survey of GPS TEC Maps From 2015-2018. _Geophys. Res. Lett._**2019**, _46_, 10726-10734. [CrossRef]
* _[PERSON] (1966)_ [PERSON]; [PERSON] Auroral electrojet activity index AE and its universal time variations. _J. Geophys. Res._**1966**, _71_, 785-801. [CrossRef]
* _[PERSON] (1995)_ [PERSON] _Turbulence: The Legacy of A. [PERSON]_; Cambridge University Press: Cambridge, UK, 1995. * _Taylor and The Spectrum of Turbulence. _Proc. R. Soc. Lond. Ser. A-Math. Phys. Sci._**1938**, _164_, 476-490. [CrossRef]
* _[PERSON] (1956)_ [PERSON] Methods of using long-term storage in reservoirs. _Proc. Inst. Civ. Eng._**1956**, \(5\), 519-543. [CrossRef]
* _Wiener and Theme Series;_ MiLT Press: Cambridge, MA, USA, 1964; p. 42. * _[PERSON] et al. (2015)_ [PERSON] [PERSON]; [PERSON]; [PERSON] Magnetic field fluctuation features at Swarm's altitude: A fractal approach. _Geophys. Res. Lett._**2015**, _42_, 3100-3105. [CrossRef]
* _[PERSON] et al. (2021)_ [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] High-latitude polar pattern of ionospheric electron density: Scaling features and IMF dependence. _J. Atmos. Sol.-Terr. Phys._**2021**, _217_, 105531. [CrossRef]
* _[PERSON] et al. (2013)_ [PERSON]; [PERSON] The Solar Wind as a Turbulence Laboratory. _Living Rev. Sol. Phys._**2013**, _10_, 2. [CrossRef]
* _[PERSON] et al. (2022)_ [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON] [PERSON]; [PERSON] Magnetic Field and Electron Density Scaling Properties in the Equatorial Plasma Bubbles. _Remote Sens._**2022**, _14_, 918. [CrossRef]
* _[PERSON] and [PERSON] (1985)_ [PERSON]; [PERSON] The status of observations and theory of high latitude ionospheric and magnetospheric plasma turbulence. _Space Sci. Rev._**1985**, _41_, 91-129. [CrossRef]
* _[PERSON] et al. (1988)_ [PERSON]; [PERSON]; [PERSON] [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Simultaneous density and electric field fluctuation spectra associated with velocity shears in the auroral oval. _J. Geophys. Res._**1988**, _93_, 115-136. [CrossRef]
* _[PERSON] et al. (1990)_ [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON]; [PERSON] Plasma structuring by the gradient drift instability at high latitudes and comparison with velocity shear driven processes. _J. Geophys. Res._**1990**, _95_, 7799-7818. [CrossRef]
* _[PERSON] et al. (1974)_ [PERSON]; [PERSON]; [PERSON] In situ measurements of the spectral characteristics of F region ionospheric irregularities. _J. Geophys. Res._**1974**, _79_, 1497. [CrossRef]
* _[PERSON] et al. (1985)_ [PERSON]; [PERSON]; [PERSON] Unstable density gradients in the high-latitude ionosphere. _Radio Sci._**1985**, _20_, 755-761. [CrossRef]* [PERSON] et al.