Iowa_photoSpec install



Peer-reviewed publications


63. Porcar-Castell, A., Malenovský, Z., Magney, T., Van Wittenberghe, S., Fernández-Marín, B., Maignan, F., ... & Logan, B. (2021). Chlorophyll a fluorescence illuminates a path connecting plant molecular biology to Earth-system science. Nature Plants, 1-12.

62. Wong, C. Y., Young, D. J., Latimer, A. M., Buckley, T. N., & Magney, T. S. (2021). Importance of the legacy effect for assessing spatiotemporal correspondence between interannual tree-ring width and remote sensing products in the Sierra Nevada. Remote Sensing of Environment265, 112635. 

61. Maguire, A. J., Eitel, J. U., Magney, T. S., Frankenberg, C., Koehler, P., Orcutt, E. L., ... & Pierrat, Z. A. (2021). Spatial covariation between solar-induced fluorescence and vegetation indices from Arctic-Boreal landscapes. Environmental Research Letters

60. Madani, N.,  Parazoo, N. C.,  Kimball, J. S.,  Reichle, R. H.,  Chatterjee, A.,  Watts, J. D., et al. (2021).  The impacts of climate and wildfire on ecosystem gross primary productivity in Alaska. Journal of Geophysical Research: Biogeosciences,  126, e2020JG006078.

59. Braghiere, R. K., Wang, Y., Doughty, R., Sousa, D., Magney, T., Widlowski, J. L., ... & Frankenberg, C. (2021). Accounting for canopy structure improves hyperspectral radiative transfer and sun-induced chlorophyll fluorescence representations in a new generation Earth System model. Remote Sensing of Environment261, 112497.

58. Pierrat, Z.,  Nehemy, M. F.,  Roy, A.,  Magney, T.,  Parazoo, N. C.,  Laroque, C., et al. (2021). Tower‐based remote sensing reveals mechanisms behind a two‐phased spring transition in a mixed‐species boreal forest. Journal of Geophysical Research: Biogeosciences,  126, e2020JG006191.

57. Meeker, E., Magney, T.S., Bambach, N., Momayyezi, M., McElrone, A.J. (2021). Modification of a gas exchange system to measure active and passive chlorophyll fluorescence simultaneously under field conditions, AoB PLANTS, Volume 13, Issue 1, February 2021, plaa066,

56. Seyednasrollah, B., Bowling, D.R., Cheng, R., Logan, B.A., Magney, T.S., Frankenberg, C., Yang, J.C., Young, A.M., Hufkens, K., Arain, M.A., Black, T.A., Blanken, P.D., Bracho, R., Jassal, R., Hollinger, D.Y., Law, B.E., Nesic, Z. and Richardson, A.D. (2021). Seasonal variation in the canopy color of temperate evergreen conifer forests. New Phytologist. 229 (5), 2586-2600


55. Magney, T. S., Barnes, M. L., & Yang, X. (2020). On the covariation of chlorophyll fluorescence and photosynthesis across scales. Geophysical Research Letters, 47, e2020GL091098. 

54. He, L., Wood, J. D., Sun, Y., Magney, T., Dutta, D., Köhler, P., ... & Frankenberg, C. (2020). Tracking seasonal and interannual variability in photosynthetic downregulation in response to water stress at a temperate deciduous forest. Journal of Geophysical Research: Biogeosciences125(8), e2018JG005002. 

53. Yang, J. C.,  Magney, T. S.,  Yan, D.,  Knowles, J. F.,  Smith, W. K.,  Scott, R. L., &  Barron‐Gafford, G. A. (2020). The photochemical reflectance index (PRI) captures the ecohydrologic sensitivity of a semi‐arid mixed conifer forest. Journal of Geophysical Research: Biogeosciences,  125, e2019JG005624.

52. Cheng, R., Magney, T. S., Dutta, D., Bowling, D. R., Logan, B. A., Burns, S. P., Blanken, P. D., Grossmann, K., Lopez, S., Richardson, A. D., Stutz, J., and Frankenberg, C. (2020). Decomposing reflectance spectra to track gross primary production in a subalpine evergreen forest, Biogeosciences, 17, 4523–4544,

51. Köhler, P.,  Behrenfeld, M. J.,  Landgraf, J.,  Joiner, J.,  Magney, T. S., &  Frankenberg, C. (2020).  Global retrievals of solar‐induced chlorophyll fluorescence at red wavelengths with TROPOMI. Geophysical Research Letters,  47, e2020GL087541.

50. Parazoo, N. C., Magney, T., Norton, A., Raczka, B., Bacour, C., Maignan, F., Baker, I., Zhang, Y., Qiu, B., Shi, M., MacBean, N., Bowling, D. R., Burns, S. P., Blanken, P. D., Stutz, J., Grossman, K., and Frankenberg, C (2020): Wide Discrepancies in the Magnitude and Direction of Modelled SIF in Response to Light Conditions. Biogeosciences

49. Maguire, A. J.,  Eitel, J. U. H.,  Griffin, K. L.,  Magney, T. S.,  Long, R. A.,  Vierling, L. A., et al.. ( 2020).  On the Functional Relationship Between Fluorescence and Photochemical Yields in Complex Evergreen Needleleaf CanopiesGeophysical Research Letters,  47, e2020GL087858.

48. Chang, C. Y.,  Guanter, L.,  Frankenberg, C.,  Köhler, P.,  Gu, L.,  Magney, T. S., et al ( 2020).  Systematic assessment of retrieval methods for canopy far‐red solar‐induced chlorophyll fluorescence (SIF) using high‐frequency automated field spectroscopyJournal of Geophysical Research: Biogeosciences,  125, e2019JG005533.

47. Yin, Y., Byrne, B., Liu, J., Wennberg, P. O., Davis, K. J., Magney, T., … Frankenberg, C. (2020). Cropland Carbon Uptake Delayed and Reduced by 2019 Midwest Floods. AGU Advances1(1), 1–15. 

46. He, L.,  Magney, T.,  Dutta, D.,  Yin, Y.,  Köhler, P.,  Grossmann, K., ...Frankenberg, C. ( 2020).  From the ground to space: Using solar‐induced chlorophyll fluorescence (SIF) to estimate crop productivity. Geophysical Research Letters,  47, e2020GL087474.

45. Prager, C.M., Boelman, N.T., Eitel, J.U.H., Gersony, J.T., Greaves, H., Heskel, M., Magney, T.S., Menge, D., Naeem, S., Shen, C., Vierling L., Griffin, K. (2020) A mechanism of expansion: Arctic deciduous shrubs capitalize on warming-induced nutrient availability. Oecologia.

44. Turner, A. J., Köhler, P., Magney, T. S., Frankenberg, C., Fung, I., & Cohen, R. C. (2020). A double peak in the seasonality of California’s photosynthesis as observed from space. Biogeosciences.

43. Wen, J., Köhler, P., Duveiller, G., Parazoo, N. C., Magney, T. S., Hooker, G., … Sun, Y. (2020). A framework for harmonizing multiple satellite instruments to generate a long-term global high spatial-resolution solar-induced chlorophyll fluorescence (SIF). Remote Sensing of Environment239.


42. Doughty, R., Kophler, P., Frankenberg, C., Magney, T.S., Xiao, X., Qin, Y. Wu., X., Moore, B. 2019. TROPOMI reveals dry-season increase of solar-induced chlorophyll fluorescence in the Amazon forest. Proceedings of the National Academy of Sciences. 116 (44), 22393-22398.

41. Greaves, H., Eitel, J.U.H., Vierling, L., Boelman, N., Griffin, K., Magney, T.S., Prager, C.M. 2019. 20 cm resolution mapping of tundra vegetation communities provides an ecological baseline for important research areas in a changing Arctic environment. Environmental Research Communications. 1 (10), 105004.

40. Parazoo, N., Frankenberg, C., Kohler, P., Joiner, J., Yoshida, Y., Magney, T.S., Sun, Y., Yadav, V. 2019. Towards a Harmonized Long‐Term Spaceborne Record of Far‐Red Solar‐Induced Fluorescence. Journal of Geophysical Research- Biogeosciences.124(8), 2518-2539.

39. Raczka, B., Porcar-Castell, A., Magney, T.S., Blanken, P., Burns, S., Duarte, H., Frankenberg, C., Grossmann, K., Kohler, P., Lee, J.E., Lin, J.C., Logan, B.A, Stutz, J., Yang, X., Bowling, D. 2019. Sustained non-photochemical quenching shapes the seasonal pattern of solar-induced fluorescence at a high-elevation evergreen forest. Journal of Geophysical Research- Biogeosciences. 124(7), 2005-2020.

38. Schimel, D., Schnieder, F., and JPL Carbon Cycle and Ecosystems Group (including Magney, T.S.). 2019­. Tansley review: Flux towers in the sky: global ecology from space. New Phytologist. 224 (2), 570-581.

37. Magney, T.S., Bowling, D.R., Logan, B., Grossmann, K., Stutz, J., Blanken, P., Burns, S., Cheng, R., Garcia, M., Kohler, P., Lopez, S., Parazoo, N., Rackza, B., Schimel, D., Frankenberg, C.F. 2019.  Mechanistic evidence for tracking the precise seasonality of photosynthesis with solar-induced fluorescence.  Proceedings of the National Academy of Sciences. 116 (24, 11640-11645.

36. Magney, T.S., Frankenberg, C., Koehler, P., North, G., Davis, T.S., Dold, C., Dutta, D., Fisher, J., Grossmann, K., Harrington, A., Hatfield, J., Stutz, J., Sun, Y., Porcar-Castell, A. 2019. Disentangling changes in the spectral shape of chlorophyll fluorescence: Implications for remote sensing of photosynthesis. Journal of Geophysical Research-Biogeosciences. 124 (6), 1491–1507.

35. Bogue, R., Schwander, F., Fisher, J.B., Pavlick, R, Magney, T.S., Famiglietti, C.A., Cawse-Nicholson, K., Yadav, V., Linick, J.P., North, G.B., Duarte, E. 2019. Plant responses to volcanically-elevated CO2 in two Costa Rican forests. Biogeosciences.16 (6), 1343-1360.  

34. Eitel, J.U.H., Maguire, A.J., Boelman, N., Vierling, L.A., Griffin, K.L., Jensen, J., Magney, T.S., Mahoney, P.J., Meddens, A.J., Silva, C., Sonnentag, O. 2019. Remotely sensing tree physiology at northern treeline: Do late-season changes in the photochemical reflectance index (PRI) respond to climate or photoperied? Remote Sensing of Environment. 22, 340-350


33. Koehler, P., Frankenberg, C., Magney, T.S., Joiner, J., Guanter, L., Landgraf, J.  2018. Global retrievals of solar-induced chlorophyll fluorescence with TROPOMI: first results and inter-sensor comparison to OCO-2. Geophysical Research Letters. 45(19), 456-463.

32. Frankenberg, C., Koehler, P., Magney, T.S., Geier, S., Lawson, P., Schwochert, M., Drewry, D., Kuhnert, A. 2018The Chlorophyll Fluorescence Imaging Spectrometer, an airborne spectrometer for sensing far-red fluorescence. Remote Sensing of Environment. 217, 523-536.

31. Grossmann, K., Frankenberg, C., Magney, T.S., Herlock, S., Siebt, U., Stutz, J. 2018PhotoSpec: A New Instrument to Measure Spatially Distributed Red and Far-Red Solar Induced Chlorophyll Fluorescence. Remote Sensing of Environment. 216, 311-327.

30. Sun, Y., Frankenberg, C., Jung, M., Joiner, J., Guanter, L., Koehler, P., Magney, T.S. 2018. Overview of Solar-induced chlorophyll fluorescence from the Orbiting Carbon Observatory-2: Retrieval, cross-mission comparison, and global monitoring for GPP. Remote Sensing of Environment. 209, 808-823


    29. Sun, Y., Frankenberg C.F., Wood, J.D., Schimel, D., Jung, M., Guanter, L., Drewry, D.T., Verma, M., Porcar-Castell, A., Griffis, T.J., Gu, L., Magney, T.S., Köhler, P., Evans, B., Yuen, K. 2017. OCO-2 advances photosynthesis observation from space via solar-induced chlorophyll fluorescence. Science. 358 (6360), 189.

    28. Magney, T.S., Frankenberg, C.F., Fisher, J.B., Sun, Y., North, G.B., Davis, T.S., Kornfeld, A., Siebke, K. 2017. Connecting active to passive fluorescence with photosynthesis: a method for evaluating remote sensing measurements of Chl fluorescence. New Phytologist. 215 (4), 1594–1608.

    27. Verma, M., Schimel, D., Evans, B., Frankenberg, C., Beringer, J., Drewry, D. Marang, I., Magney, T.S., Hutley, L., Moore, C., Eldering, A. Effect of environmental conditions on the relationship between solar induced fluorescence and gross primary productivity at an OzFlux grassland site. 2017. Journal of Geophysical Research – Biogeosciences. 122 (3), 716-733.

    26. Magney, T.S., Logan, B.A., Reblin, J.R., Griffin, K.L., Boelman, Eitel, J.U.H., Boelman, N.B., Prager, C., Greaves, H., Vierling, L.A. 2017. Xanthophyll cycle activity in two prominent Arctic shrub species. Arctic, Antarctic, and Alpine Research. 49(2), 277-289.

    25. Prager, C.M., Naeem, S., Boelman, N.B., Eitel, J.U.H,. Greaves, H.E., Heskel, M.A., Magney, T.S., Menge, D.N.L., Griffin, K.L. 2017. A gradient of nutrient enrichment reveals contrasting non-linear impacts of nutrient addition on Arctic plant diversity and ecosystem function. Ecology and Evolution. 7 (7), 2449–2460.

    24. Ma, L., Zheng, G., Eitel, J.U.H., Magney, T.S., Moskal, M. Retrieving forest canopy extinction coefficient from three dimensional point cloud data. 2017. Agricultural and Forest Meteorology. 236, 1-26.

    23. Greaves, H.E., Vierling, L.A., Eitel, J.U.H., Boelman, N.T., Magney, T.S., Prager, C.M., Griffin, K.L, 2017. Terrestrial lidar for evaluation and calibration of airborne-lidar-derived shrub biomass estimates in Arctic tundra. Remote Sensing Letters. 8 (2), 175-184.

    22. Magney, T.S., Eitel, J.U.H., Vierling, L.A. 2017. Mapping wheat nitrogen uptake from RapidEye vegetation indices.  Precision Agriculture. 18, 429–451.

    21. Zheng, G. Ma, L. Eitel, J.U.H. Magney, T.S. Moskal, L.M. Li, M. Retrieving directional gap fraction, extinction coefficient, and effective leaf area index by incorporating scan angle information from discrete aerial lidar data. 2017. IEEE Transactions on Geoscience and Remote Sensing. 55 (1), 577-590.


      20. Eitel, J.U.H, Magey, T.S., Vierling, L.A., Greaves, H.E., Zheng, G. Towards automated crop biomass sampling and satellite image calibration with low-cost, hypertemporal lidar. 2016. Remote Sensing of Environment. 187, 414-422.

      19. Gersony., J.T., Prager, C.M., Boelman, N.T., Eitel, J.U.H., Gough, L., Greaves, H.E., Griffin, K.L., Magney, T.S., Sweet, S.K., Vierling, L.A., Naeem, S. Scaling thermal properties from the leaf to the canopy in the Alaskan arctic tundra. 2016.  Arctic, Antarctic, and Alpine Research. 48 (4), 739-754.

      18. Eitel, J.U.H., Höfle B., Vierling, L.A., Abéllan, A., Asner, G., Deems, J.S., Glennie, C., Joerg, P.C., LeWinder, A., Magney, T.S., Mandlburger, G., Morton, D., Müller, J., Vierling, K. 2016. Beyond 3-D: the new spectrum of lidar applications for earth and ecological sciences. Remote Sensing of Environment. 186, 372-392.

      17. Greaves, H.E., Vierling, L.A., Eitel, J.U.H., Boelman, N.T., Magney, T.S., Prager, C.M., Griffin, K.L. 2016. High-resolution mapping of aboveground shrub biomass in Arctic tundra using airborne lidar and imagery. Remote Sensing of Environment. 184, 361-373.

      16. Magney, T.S., Eitel, J.U.H., Griffin, K.L., Boelman, N.T., Greaves, H.E., Prager, C.M., Logan, B.A., Zheng, G., La, M., Fortin, E.A., Oliver, R.Y., Vierling, L.A. 2016. LiDAR canopy radiation model reveals patterns of photosynthetic partitioning in an Arctic shrub. Agricultural and Forest Meteorology, 221, 78–93. 

      15. Boelman, N.B., Holbrook, J., Greaves, H., Gough, L., Wingfield, J., Krause, J., Chmura, H., Magney, T.S., Eitel, J.U.H, Perez, J. Vierling, K., Vierling, L. 2016. LiDAR gives a bird's eye perspective on arctic tundra breeding habitat at multiple spatial scales. Remote Sensing of Environment, 184, 361-373.

      14. Ma, L., Zheng, G., Eitel, J.U.H., Magney, T.S., Moskal, M. 2016. Determining Woody-to-Total Area Ratio using Terrestrial Laser Scanning (TLS). Agricultural and Forest Meteorology. 228, 217-228.

      13. Magney, T.S., Eitel, J.U.H., Huggins, D.R., Vierling, L.A. 2016. Proximal NDVI derived phenology improves in-season predictions of wheat quantity and quality. Agricultural and Forest Meteorology, 217, 46-60.

      12. Boelman, N.B., MagneyT.S., Logan, B.A., Griffin, K.L., Eitel, J.U.H., Greaves, H., Prager, C.M., Vierling, L.A. 2016. Spectral determination of concentrations of functionally diverse pigments in increasingly complex arctic tundra canopies. Oecologia, 182, 85-97.

      11. Magney, T.S., Vierling, L.A., Eitel, J.U.H., Huggins, D.R., Garrity, S.R. 2016. Response of high frequency Photochemical Reflectance Index (PRI) measurements to environmental conditions in wheat. Remote Sensing of Environment, 173, 84-97.


        10. Parsons, R., Eitel, J.U.H., Whitney, B., Eitel, K.B., Magney, T.S., Vierling, L.A. 2015. Connecting the Dots: Lasers Link Students to their 3-D World. Science Scope. 39 (2), 28-35.

        9. Greaves, H.E., Vierling, L.A., Eitel, J.U.H., Boelman, N.T., Magney, T.S., Prager, C.M., Griffin, K.L. 2015. Estimating aboveground biomass and leaf area of low-stature Arctic shrubs with terrestrial LiDAR. Remote Sensing of Environment. 164, 26–35. 

        8. Davis T.S., Bosque-Pérez N.A., Foote N.E., Magney, T.S., Eigenbrode, S.D. 2015. Environmentally dependent host-pathogen and vector-pathogen interactions in the Barley yellow dwarf virus pathosystem. Journal of Applied Ecology. 52:1392–1401. 

        7. Klos P.Z., Abatzoglou, J.T., Blades, J., Clark, M., Dodd, M., Hall, T.E., Haruch, A., Higuera, P.R., Holbrook, J., Jansen, V.S., Kemp, K., Lankford, A., Lamar, A., Link, T.E., Magney, T.S., Meddens, A.J.H, Mitchell, L.R., Moore, B., Newingham, B., Niemeyer, R.J., Soderquist, B.,  Vierling, K.T., Walden, V., Walsch C. 2015Indicators of climate change in Idaho: The intersection of biophysical change with social perception across a diverse landscape. American Meteorological Society: Weather, Climate, and Society. 7, 238-254.

        6. Gasch C.K., Hengl T., Graler B., Meyer, H., Magney, T.S., Brown, D.J. 2015. Spatio-temporal interpolation of soil water, temperature, and electrical conductivity in 3D + T: The Cook Agronomy Farm data set. Spatial Statistics. 14, 70–90. 


            5. Eitel, J.U.H., Magney, T.S., Vierling, L.A., Dittmar, G. 2014. Assessment of crop foliar nitrogen using a novel dual-wavelength laser system and implications for conducting laser-based plant physiology. ISPRS Journal of Photogrammetry and Remote Sensing, 97, 229-240.

            4. Magney, T.S., Eusden, S.A., Eitel, J.U.H., Logan, B., Jiang, J., Vierling, L.A. 2014. Assessing leaf photoprotective mechanisms using terrestrial lidar: Towards mapping canopy photosynthetic performance in three-dimensions. New Phytologist, 201, 344-356.

            3. Eitel, J.U.H., Magney, T.S., Vierling, L.A., Brown, T.T., Huggins, D.R. 2014. LiDAR based biomass and crop nitrogen estimates for rapid, non-destructive assessment of wheat nitrogen status. Field Crops Research, 159, 21-32.


                2. Eitel, J.U.H., Vierling, L.A., Magney, T.S. 2013. A lightweight, low cost autonomously operating terrestrial laser scanner for quantifying and monitoring ecosystem structural dynamics. Agricultural and Forest Meteorology, 180, 86-96.

                1. Magney, T.S., Eitel, K.B., Eitel, J.U.H., Schon, J., Jansen, V.S., Rittenburg, R.A., Vierling, L.A. 2013. Keeping a (digital) eye on nature’s clock. The Science Teacher, 80, 37-43