Publications

In my publications I have mainly used my maiden name Hanna Dahlgren

Whiter, D.K., Dahlgren, H., Lanchester, B.S., Dreyer, J., Partamies, N., Ivchenko, N., Di Fraia, M.Z., Oliver, R., Serpell-Stevens, A., Shaw-Diaz, T. and Braunersreuther, T., 2021. Fine Scale Dynamics of Fragmented Aurora-Like Emission. Annales Geophysicae Discussions, pp.1-20. Preprint

N. Wellander, M. Elfsberg, H. Sundberg and T. Hurtig, "Destructive Testing of Electronic Components Based on Absorption Cross Section RC Measurements," 2019 International Symposium on Electromagnetic Compatibility - EMC EUROPE, Barcelona, Spain, 2019, pp. 778-783. doi: 10.1109/EMCEurope.2019.8872128

Dahlgren, H., Lanchester, B. S., Ivchenko, N., and Whiter, D. K.: Variations in energy, flux, and brightness of pulsating aurora measured at high time resolution, Ann. Geophys., 35, 493-503, doi:10.5194/angeo-35-493-2017, 2017.

Dahlgren, H., Schlatter, N. M., Ivchenko, N., Roth, L., and Karlsson, A.: Relation of anomalous F region radar echoes in the high-latitude ionosphere to auroral precipitation, Ann. Geophys., 35, 475-479, doi:10.5194/angeo-35-475-2017, 2017.

Dahlgren, H., B. S. Lanchester, N. Ivchenko, and D. K. Whiter, Electrodynamics and energy characteristics of aurora at high resolution by optical methods, J. Geophys. Res. Space Physics, 121, 5966–5974, doi:10.1002/2016JA022446, 2016.

Goenka, C., J. Semeter, J. Noto, J. Baumgardner, J. Riccobono, M. Migliozzi, H. Dahlgren, R. Marshall, S. Kapali, M. Hirsch, D. Hampton, and H. Akbari, "Multichannel tunable imager architecture for hyperspectral imaging in relevant spectral domains," Appl. Opt. 55, 3149-3157, https://doi.org/10.1364/AO.55.003149, 2016.

Kataoka, R., Y. Fukuda, H. A. Uchida, H. Yamada, Y. Miyoshi, Y. Ebihara, H. Dahlgren and D. Hampton, High-speed stereoscopy of aurora, Ann. Geophys., 34, 41-44, doi:10.5194/angeo-34-41-2016, 2016.

Hirsch, M., J. L. Semeter, M. D. Zettergren, H. Dahlgren, C. Goenka and H. Akbari, Reconstruction of fine scale dynamics in the aurora, IEEE Transactions on Geoscience and Remote Sensing , vol.PP, no.99, pp.1-12, doi: 10.1109/TGRS.2015.2505686, 2016.

Zettergren, M. D., J. L. Semeter and H. Dahlgren, Dynamics of density cavities generated by frictional heating: formation, distortion, and instability, Geophys. Res. Lett., 42, 10,120–10,125, doi:10.1002/2015GL066806, 2015.

Perry, G. W., H. Dahlgren, M. J. Nicolls, M. Zettergren, J.-P. St.-Maurice, J. L. Semeter, T. Sundberg, K. Hosokawa, K. Shiokawa, and S. Chen, Spatiotemporally resolved electrodynamic properties of a Sun-aligned arc over Resolute Bay, J. Geophys. Res. Space Physics, 120, doi:10.1002/2015JA021790, 2015.

Schlatter, N. M., V. Belyey, B. Gustavsson, N. Ivchenko, D. Whiter, H. Dahlgren, S. Tuttle and T. Grydeland, Auroral ion acoustic wave enhancement observed with a radar interferometer system, Ann. Geophys., 33, 837-844, doi:10.5194/angeo-33-837-2015, 2015.

Goenka, C., J. Semeter, J. Noto, J. Baumgardner, J. Riccobono, M. Migliozzi, H. Dahlgren, R. Marshall, S. Kapali, M. Hirsch, D. Hampton and H. Akbari, LiCHI – Liquid Crystal Hyperspectral Imager for simultaneous multispectral imaging in aeronomy, Opt Express, Jul 13; 23(14), 17772-82, doi:10.1364/OE.23.017772, 2015.

Dahlgren, H., B. S. Lanchester, and N. Ivchenko, Coexisting structures from high- and low-energy precipitation in fine-scale aurora. Geophys. Res. Lett., 42: 1290–1296. doi:10.1002/2015GL063173, 2015.

Kataoka, R., Y. Fukuda, Y. Miyoshi, H. Miyahara, S. Itoya, Y. Ebihara, D. Hampton, H. Dahlgren, D. Whiter and N. Ivchenko: Compound auroral micromorphology: Ground-based high-speed imaging, Earth, Planets and Space, 67:23,  doi:10.1186/s40623-015-0190-6, 2015.

Whiter, D. K., B. S. Lanchester, B. Gustavsson, N. I. B. Jallo, O. Jokiaho, N. Ivchenko and H. Dahlgren: Relative brightness of the O+(2D – 2P) doublets in low-energy aurorae, ApJ, 797:64, doi:10.1088/0004-637X/797/1/64, 2014.

Dahlgren, H, G. W. Perry, J.-P. St Maurice, T. Sundberg, K, Hosokawa, J. L. Semeter, M. J. Nicolls and K. Shiokawa: 3D imaging reveals electrodynamics of polar cap aurora, Astron. Geophys. 55, 5.26 - 5.28, doi:10.1093/astrogeo/atu215, 2014. 

Dahlgren, H., J. L. Semeter, R. A. Marshall and M. Zettergren: The optical manifestation of dispersive field-aligned bursts in auroral breakup arcs, J. Geophys. Res.,  118, 4572–4582, doi:10.1002/jgra.50415, 2013.

Goenka, C., J. L. Semeter, J. Noto, H. Dahlgren, R. Marshall, J. Baumgardner, J. Riccobono and M. Migliozzi: Tunable filters for multispectral imaging of aeronomical features, Advances in Space Research,  52, 1366-1377, doi:10.1016/j.asr.2013.06.014, 2013.

Dahlgren, H., N. Ivchenko, and B. S. Lanchester: Monoenergetic high-energy electron precipitation in thin auroral filaments, Geophys. Res. Lett., 39, L20101, doi:10.1029/2012GL053466, 2012.

Lynch, K. A., D. Hampton, M. Mella, B. Zhang, H. Dahlgren, M. Disbrow, P. M. Kintner, M. Lessard, E. Lundberg, and H. C. Stenbaek-Nielsen: Structure and dynamics of the nightside poleward boundary: Sounding rocket and ground-based observations of auroral electron precipitation in a rayed curtain, J. Geophys. Res., 117, A11202, doi:10.1029/2012JA017691, 2012.

Dahlgren, H., G. W. Perry, J. L. Semeter, J.-P. St.-Maurice, K. Hosokawa, M. J. Nicolls, M. Greffen, K. Shiokawa, and C. Heinselman: Space-time variability of polar cap patches: Direct evidence for internal plasma structuring, J. Geophys. Res., 117, A09312, doi:10.1029/2012JA017961, 2012.

Dahlgren, H., J. L. Semeter, K. Hosokawa, M. J. Nicolls, T. W. Butler, M. G. Johnsen, K. Shiokawa, and C. Heinselman: Direct three-dimensional imaging of polar ionospheric structures with the Resolute Bay Incoherent Scatter Radar, Geophys. Res. Lett., 39, L05104, doi:10.1029/2012GL050895, 2012.

Akbari, H., J. L. Semeter, H. Dahlgren, M. Diaz, M. Zettergren, A. Strømme, M. J. Nicolls, and C. Heinselman: Anomalous ISR echoes preceding auroral breakup: Evidence for strong Langmuir turbulence, Geophys. Res. Lett., 39, L03102, doi:10.1029/2011GL050288, 2012.

Mella, M., K. A. Lynch, D. L. Hampton, H. Dahlgren, P. M. Kintner, M. Lessard, D. Lummerzheim, E. T. Lundberg, M. J. Nicolls, H. C. Stenbaeck-Nielsen: Sounding rocket study of two sequential auroral poleward boundary intensifications, J. Geophys. Res., 116, A00K18, doi:10.1029/2011JA016428, 2011.

Dahlgren, H., B. Gustafsson, B. S. Lanchester, N. Ivchenko, U. Brändström, D. K. Whiter, T. Sergienko, I. Sandahl, G. Marklund: Energy and flux variations across thin auroral arcs, Ann. Geophys. 29, 1-14, doi:10.5194/angeo-29-1-2011, 2011. 

Dahlgren, H., T. Sundberg, A.B. Collier, E. Koen, S. Meyer: Solar flares detected by the new narrowband VLF receiver at SANAE IV, South African Journal of Science 107, 9/10, doi:10.4102/ sajs.v107i9/10.491, 2011.

Archer, J., H. Dahlgren, N. Ivchenko, B.S. Lanchester, G.T. Marklund: Dynamics and characteristics of black aurora as observed by high resolution ground-based imagers and radar, Int. J. Remote Sens., 32, 2973-2985, doi:10.1080/01431161.2010.541517, 2011.

Dahlgren, H.: "Multi-spectral analysis of fine scale aurora", Doctoral Thesis, 2010. 

Dahlgren, H., A. Aikio, K. Kaila, N. Ivchenko, B.S. Lanchester, D. K. Whiter, G.T. Marklund: Simultaneous observations of small multi-scale structures in an auroral arc, J. Atmos. Solar-Terr. Phys., 72, 633-637, doi:10.1016/j.jastp.2010.01.014, 2010.

Cosgrove, R., M. Nicolls, H. Dahlgren, S. Ranjan, E. Sanchez, R. Doe: Radar detection of a localized 1.4 Hz pulsation in auroral plasma, simultaneous with pulsating optical emissions, Ann. Geophys. 28, 1961-1979, doi:10.5194/angeo-28-1961-2010, 2010.

Whiter, D.K., B.S. Lanchester, B. Gustavsson, N. Ivchenko, H. Dahlgren: Using multispectral optical observations to identify the acceleration mechanism responsible for flickering aurora, J. Geophys. Res. 115, A12315, doi:10.1029/2010JA015805, 2010.

Dahlgren, H.: Jakten på svart norrsken, Popular Astronomi, 2, 12-17, 2010.

Jokiaho, O., N. Ivchenko, H. Dahlgren, D. Whiter, M. Alaniz: Auroral diagnostics for PoGOLite astrophysical balloon, Proceeding for 19th ESA symposium on European Rocket and Balloon Programmes and Related Research (ESA SP-671), 2009.

Dahlgren, H., N. Ivchenko, B.S. Lanchester, M. Ashrafi, D. Whiter, G. Marklund, J. Sullivan: First direct optical observations of plasma flows using afterglow of O+ in discrete aurora, J. Atmos. Solar-Terr. Phys., 71, 228-238, doi:10.1016/j.jastp.2008.11.015, 2009.

Whiter D.K., B.S. Lanchester, B. Gustavsson, N. Ivchenko, J.M. Sullivan, H. Dahlgren: Small-scale structures in flickering aurora, Geophys. Res. Lett., 35, L23103, doi:10.1029/2008GL036134, 2008.

Sullivan, J.M., M. Lockwood, B.S. Lanchester, E.P. Kontar, N. Ivchenko, H. Dahlgren, D.K. Whiter: An optical study of multiple NEIAL events driven by low energy electron precipitation, Ann. Geophys., 26, 2435-2447, doi:10.5194/angeo-26-2435-2008, 2008.

Dahlgren, H., N. Ivchenko, B.S. Lanchester, J. Sullivan, D. Whiter, G. Marklund, A. Strømme:  Using spectral characteristics to interpret auroral imaging in the 731.9 nm O+ line, Ann. Geophys., 26, 1905-1917, doi:10.5194/angeo-26-1041-2008, 2008.

Dahlgren, H., N. Ivchenko, J. Sullivan, B.S. Lanchester, G. Marklund, D. Whiter:  Morphology and dynamics of aurora at fine scale: first results from the ASK instrument, Ann. Geophys., 26, 1041-1048, doi:10.5194/angeo-26-1041-2008, 2008.

Dahlgren, H.: Fince-scale morphology and spectral characteristics of active aurora, Licentiate Thesis in Physical Electrotechnology, Stockholm 2008. 

Dahlgren, H., P. Carlqvist, G. Gahm:  Filamentary structures in planetary nebulae, Astrophysics and Space Science, Vol. 310, Issue 1-2, pp. 65-72, doi:10.1007/s10509-007-9414-y, 2007.