M. E. Hagan

11.0k total citations · 2 hit papers
130 papers, 8.8k citations indexed

About

M. E. Hagan is a scholar working on Astronomy and Astrophysics, Atmospheric Science and Oceanography. According to data from OpenAlex, M. E. Hagan has authored 130 papers receiving a total of 8.8k indexed citations (citations by other indexed papers that have themselves been cited), including 121 papers in Astronomy and Astrophysics, 52 papers in Atmospheric Science and 36 papers in Oceanography. Recurrent topics in M. E. Hagan's work include Ionosphere and magnetosphere dynamics (113 papers), Solar and Space Plasma Dynamics (82 papers) and Atmospheric Ozone and Climate (42 papers). M. E. Hagan is often cited by papers focused on Ionosphere and magnetosphere dynamics (113 papers), Solar and Space Plasma Dynamics (82 papers) and Atmospheric Ozone and Climate (42 papers). M. E. Hagan collaborates with scholars based in United States, Germany and Japan. M. E. Hagan's co-authors include J. M. Forbes, R. G. Roble, Astrid Maute, F. Vial, Hanli Liu, Jens Oberheide, T. J. Immel, S. England, Xiaoli Zhang and X. Zhang and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Geophysical Research Letters and Reviews of Geophysics.

In The Last Decade

M. E. Hagan

126 papers receiving 8.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Migrating and nonmigrating diurnal tides in the middle and upper atmosphere excited by tropospheric latent heat release

2002 730 citations M. E. Hagan, J. M. Forbes Journal of Geophysical Research Atmospheres profile →
Control of equatorial ionospheric morphology by atmospheric tides

2006 558 citations T. J. Immel, E. Sagawa et al. Geophysical Research Letters profile →

Peers

Countries citing papers authored by M. E. Hagan

Since Specialization

Citations

This map shows the geographic impact of M. E. Hagan's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by M. E. Hagan with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites M. E. Hagan more than expected).

Fields of papers citing papers by M. E. Hagan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by M. E. Hagan. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by M. E. Hagan. The network helps show where M. E. Hagan may publish in the future.

Co-authorship network of co-authors of M. E. Hagan

This figure shows the co-authorship network connecting the top 25 collaborators of M. E. Hagan. A scholar is included among the top collaborators of M. E. Hagan based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with M. E. Hagan. M. E. Hagan is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	On the Specification of Upward-Propagating Tides for ICON Science Investigations 2017 ·Space Science Reviews ·J. M. Forbes, Xiaoli Zhang, M. E. Hagan, S. England, Guiping Liu, Federico Gasperini	25
2	Scientific challenges in thermosphere-ionosphere forecasting – conclusions from the October 2014 NASA JPL community workshop 2016 ·Journal of Space Weather and Space Climate ·A. J. Mannucci, M. E. Hagan, A. Vourlidas, C. Y. Huang, O. P. Verkhoglyadova, Yue Deng	8
3	Global ionospheric and thermospheric response to the 5 April 2010 geomagnetic storm: An integrated data‐model investigation 2014 ·Journal of Geophysical Research Space Physics ·G. Lu, M. E. Hagan, K. Häusler, Eelco Doornbos, Sean Bruinsma, B. J. Anderson, H. Korth	53
4	Evidence of Tropospheric Effects on the Ionosphere 2009 ·Eos ·T. J. Immel, S. B. Mende, M. E. Hagan, P. M. Kintner, S. England	24
5	Control of equatorial ionospheric morphology by atmospheric tides breakdown → 2006 ·Geophysical Research Letters ·T. J. Immel, E. Sagawa, S. England, Sarah B. Henderson, M. E. Hagan, S. B. Mende, H. U. Frey, Charles Swenson, L. J. Paxton	558
6	A climatology of tides in the Antarctic mesosphere and lower thermosphere 2006 ·Journal of Geophysical Research Atmospheres ·D. J. Murphy, J. M. Forbes, R. L. Walterscheid, M. E. Hagan, S. K. Avery, T. Asô, G. J. Fraser, David C. Fritts, M. J. Jarvis, Adrian McDonald, D. M. Riggin, Masaki Tsutsumi, R. A. Vincent	68
7	Comparative Study of Short Term Tidal Variability 2005 ·AGU Spring Meeting Abstracts ·(unknown), (unknown), Chunxing She, Jens Oberheide, Qian Wu, M. E. Hagan, R. G. Roble	7
8	Global Occurrence Statistics of Mesospheric Inversion Layers Obtained From SABER Temperature Profiles 2004 ·AGU Fall Meeting Abstracts ·J. R. Winick, P. P. Wintersteiner, R. H. Picard, (unknown), M. G. Mlynczak, M. E. Hagan, W. E. Ward, James M. Russell, L. L. Gordley	0
9	TIMED Doppler Interferometer Observations of Mesosphere and Lower Thermosphere Tides 2004 ·AGU Fall Meeting Abstracts ·T. L. Killeen, Qian Wu, Jens Oberheide, D. A. Ortland, S. C. Solomon, W. R. Skinner, R. J. Niciejewski, (unknown), R. G. Roble, M. E. Hagan, S. J. Franke	1
10	Global distributions of diurnal and semidiurnal tides: observations from HRDI-UARS of the MLT region and comparisons with GSWM-02 (migrating, nonmigrating components) 2004 ·Annales Geophysicae ·A. H. Manson, C. E. Meek, M. E. Hagan, X. Zhang, Yi Luo	52
11	Migrating and nonmigrating semidiurnal tides in the upper atmosphere excited by tropospheric latent heat release 2003 ·Journal of Geophysical Research Atmospheres ·M. E. Hagan, J. M. Forbes	422
12	Tidal signatures and aliasing in temperature data from slowly precessing satellites 2003 ·Journal of Geophysical Research Atmospheres ·Jens Oberheide, M. E. Hagan, R. G. Roble	51
13	Seasonal variations of the semi-diurnal and diurnal tides in the MLT: multi-year MF radar observations from 2–70° N, modelled tides (GSWM, CMAM) 2002 ·Annales Geophysicae ·A. H. Manson, C. E. Meek, M. E. Hagan, John N. Koshyk, Steven Franke, David C. Fritts, Chris Hall, W. K. Hocking, K. Igarashi, J. W. MacDougall, D. M. Riggin, R. A. Vincent	57
14	Tides in the Mesopause Region over Fort Collins, CO (41N, 105W) Based on Lidar Temperature Observations Covering Full Diurnal Cycles 2001 ·AGU Spring Meeting Abstracts ·C. Y. She, (unknown), (unknown), B. P. Williams, David A. Krueger, M. E. Hagan	9
15	Modeling diurnal tidal variability with the National Center for Atmospheric Research thermosphere‐ionosphere‐mesosphere‐electrodynamics general circulation model 2001 ·Journal of Geophysical Research Atmospheres ·M. E. Hagan, R. G. Roble	144
16	Global study of northern hemisphere quasi-2-day wave events in recent summers near 90 km altitude 1996 ·Journal of Atmospheric and Terrestrial Physics ·C. E. Meek, A. H. Manson, Steven Franke, W. Singer, Peter Hoffmann, Ronald Clark, Toshitaka Tsuda, Takuji Nakamura, Masaki Tsutsumi, M. E. Hagan, David C. Fritts, Joseph R. Isler, Yu. I. Portnyagin	80
17	Comparative effects of migrating solar sources on tidal signatures in the middle and upper atmosphere 1996 ·Journal of Geophysical Research Atmospheres ·M. E. Hagan	148
18	Numerical investigation of the propagation of the quasi‐two‐day wave into the lower thermosphere 1993 ·Journal of Geophysical Research Atmospheres ·M. E. Hagan, J. M. Forbes, F. Vial	138
19	Solar Cycle Variability of Exospheric Temperature at Middle Latitudes. 1986 ·PhDT ·M. E. Hagan	1
20	Thermospheric extensions of the classical expansion functions for semidiurnal tides 1982 ·Journal of Geophysical Research Atmospheres ·J. M. Forbes, M. E. Hagan	65

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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