Carl J. Lorenzen

11.8k total citations · 5 hit papers
39 papers, 10.1k citations indexed

About

Carl J. Lorenzen is a scholar working on Oceanography, Ecology and Environmental Chemistry. According to data from OpenAlex, Carl J. Lorenzen has authored 39 papers receiving a total of 10.1k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Oceanography, 9 papers in Ecology and 9 papers in Environmental Chemistry. Recurrent topics in Carl J. Lorenzen's work include Marine and coastal ecosystems (30 papers), Marine Biology and Ecology Research (13 papers) and Aquatic Ecosystems and Phytoplankton Dynamics (7 papers). Carl J. Lorenzen is often cited by papers focused on Marine and coastal ecosystems (30 papers), Marine Biology and Ecology Research (13 papers) and Aquatic Ecosystems and Phytoplankton Dynamics (7 papers). Carl J. Lorenzen collaborates with scholars based in United States and Canada. Carl J. Lorenzen's co-authors include Robert R. L. Guillard, O. Holm‐Hansen, R Holmes, John Strickland, Nicholas A. Welschmeyer, Andrea Copping, María Vernet, Gifford C. Ewing, George L. Clarke and Louis A. Hobson and has published in prestigious journals such as Science, Ecology and Limnology and Oceanography.

In The Last Decade

Carl J. Lorenzen

39 papers receiving 9.0k citations

Hit Papers

5 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.

DETERMINATION OF CHLOROPHYLL AND PHEO‐PIGMENTS: SPECTROPHOTOMETRIC EQUATIONS1

1967 3.2k citations Carl J. Lorenzen Limnology and Oceanography profile →
Fluorometric Determination of Chlorophyll

1965 2.2k citations O. Holm‐Hansen, Carl J. Lorenzen et al. ICES Journal of Marine Science profile →
YELLOW‐GREEN ALGAE WITH CHLOROPHYLLIDE C^1,²

1972 1.1k citations Robert R. L. Guillard, Carl J. Lorenzen Journal of Phycology profile →
A method for the continuous measurement of in vivo chlorophyll concentration

1966 785 citations Carl J. Lorenzen profile →
YELLOW-GREEN ALGAE WITH CHLOROPHYLLIDE C1,2

1972 429 citations Robert R. L. Guillard, Carl J. Lorenzen Journal of Phycology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Carl J. Lorenzen United States	34	7.1k	3.9k	3.2k	1.7k	884	39	10.1k
Richard W. Eppley United States	50	8.8k 1.2×	4.0k 1.0×	2.3k 0.7×	2.0k 1.2×	1.1k 1.2×	95	10.5k
Osmund Holm‐Hansen United States	57	7.2k 1.0×	4.1k 1.1×	1.6k 0.5×	1.8k 1.1×	917 1.0×	128	10.0k
John H. Ryther United States	43	8.7k 1.2×	4.2k 1.1×	3.3k 1.0×	2.9k 1.7×	3.1k 3.5×	98	14.7k
Quay Dortch United States	38	5.4k 0.8×	2.7k 0.7×	3.5k 1.1×	1.1k 0.7×	467 0.5×	67	7.9k
Richard C. Dugdale United States	52	9.0k 1.3×	4.3k 1.1×	2.3k 0.7×	2.0k 1.2×	456 0.5×	122	11.1k
G. E. Fogg United Kingdom	43	3.4k 0.5×	2.2k 0.6×	1.8k 0.6×	1.3k 0.8×	1.5k 1.7×	105	7.1k
Joel C. Goldman United States	41	4.2k 0.6×	2.0k 0.5×	1.8k 0.6×	1.0k 0.6×	1.5k 1.7×	76	6.3k
D. R. S. Lean Canada	58	3.1k 0.4×	3.7k 1.0×	3.7k 1.2×	849 0.5×	407 0.5×	237	10.9k
Stephen C. Maberly United Kingdom	57	4.4k 0.6×	3.5k 0.9×	3.9k 1.2×	1.4k 0.8×	914 1.0×	186	9.9k
Hans W. Paerl United States	56	8.5k 1.2×	6.3k 1.6×	8.5k 2.7×	1.1k 0.7×	904 1.0×	175	14.9k

Countries citing papers authored by Carl J. Lorenzen

Since Specialization

Citations

This map shows the geographic impact of Carl J. Lorenzen'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 Carl J. Lorenzen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Carl J. Lorenzen more than expected).

Fields of papers citing papers by Carl J. Lorenzen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Carl J. Lorenzen. 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 Carl J. Lorenzen. The network helps show where Carl J. Lorenzen may publish in the future.

Co-authorship network of co-authors of Carl J. Lorenzen

This figure shows the co-authorship network connecting the top 25 collaborators of Carl J. Lorenzen. A scholar is included among the top collaborators of Carl J. Lorenzen 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 Carl J. Lorenzen. Carl J. Lorenzen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Booth, B. C., Joyce Lewin, & Carl J. Lorenzen. (1988). Spring and summer growth rates of subarctic Pacific phytoplankton assemblages determined from carbon uptake and cell volumes estimated using epifluorescence microscopy. Marine Biology. 98(2). 287–298. 60 indexed citations

Lorenzen, Carl J., et al.. (1986). The specific absorption coefficients of chlorophyllide a and pheophorbide a in 90% acetone, and comments on the fluorometric determination of chlorophyll and pheopigments1. Limnology and Oceanography. 31(2). 449–452. 57 indexed citations

Lorenzen, Carl J., et al.. (1985). Carbon: pheopigment ratios of zooplankton fecal pellets as an index of herbivorous feeding1. Limnology and Oceanography. 30(5). 1024–1036. 73 indexed citations

Welschmeyer, Nicholas A. & Carl J. Lorenzen. (1985). Role of herbivory in controlling phytoplankton abundance: annual pigment budget for a temperate marine fjord. Marine Biology. 90(1). 75–86. 42 indexed citations

Lorenzen, Carl J., Nicholas A. Welschmeyer, Andrea Copping, & María Vernet. (1983). Sinking rates of organic particles1. Limnology and Oceanography. 28(4). 766–769. 48 indexed citations

Lorenzen, Carl J., et al.. (1981). In situ calibration of a sediment trap1,2. Limnology and Oceanography. 26(3). 580–585. 36 indexed citations

Lorenzen, Carl J.. (1981). Chlorophyll b in the eastern North Pacific Ocean. Deep Sea Research Part A Oceanographic Research Papers. 28(9). 1049–1056. 41 indexed citations

Welschmeyer, Nicholas A. & Carl J. Lorenzen. (1981). CHLOROPHYLL‐SPECIFIC PHOTOSYNTHESIS AND QUANTUM EFFICIENCY AT SUBSATURATING LIGHT INTENSITIES¹². Journal of Phycology. 17(4). 283–293. 64 indexed citations

Copping, Andrea & Carl J. Lorenzen. (1980). Carbon budget of a marine phytoplankton‐herbivore system with carbon‐14 as a tracer1. Limnology and Oceanography. 25(5). 873–882. 71 indexed citations

10.

Lorenzen, Carl J.. (1974). Chlorophyll-Degradation Products in Sediments of Black Sea: Biology. 145. 426–428. 1 indexed citations

11.

Betchov, R. & Carl J. Lorenzen. (1974). Phase relations in isotropic turbulence. The Physics of Fluids. 17(8). 1503–1508. 18 indexed citations

12.

Guillard, Robert R. L. & Carl J. Lorenzen. (1972). YELLOW-GREEN ALGAE WITH CHLOROPHYLLIDE C1,2. Journal of Phycology. 8(1). 10–14. 429 indexed citations breakdown →

13.

Guillard, Robert R. L. & Carl J. Lorenzen. (1972). YELLOW‐GREEN ALGAE WITH CHLOROPHYLLIDE C^1,². Journal of Phycology. 8(1). 10–14. 1056 indexed citations breakdown →

14.

Lorenzen, Carl J.. (1972). Extinction of Light in the Ocean by Phytoplankton. ICES Journal of Marine Science. 34(2). 262–267. 130 indexed citations

15.

Lorenzen, Carl J.. (1970). SURFACE CHLOROPHYLL AS AN INDEX OF THE DEPTH, CHLOROPHYLL CONTENT, AND PRIMARY PRODUCTIVITY OF THE EUPHOTIC LAYER1. Limnology and Oceanography. 15(3). 479–480. 61 indexed citations

16.

Clarke, George L., Gifford C. Ewing, & Carl J. Lorenzen. (1969). Remote measurement of ocean color as an index of biological productivity. NASA Technical Reports Server (NASA). 991. 9 indexed citations

17.

Lorenzen, Carl J.. (1967). DETERMINATION OF CHLOROPHYLL AND PHEO‐PIGMENTS: SPECTROPHOTOMETRIC EQUATIONS1. Limnology and Oceanography. 12(2). 343–346. 3185 indexed citations breakdown →

18.

Holm‐Hansen, O., Carl J. Lorenzen, R Holmes, & John Strickland. (1965). Fluorometric Determination of Chlorophyll. ICES Journal of Marine Science. 30(1). 3–15. 2192 indexed citations breakdown →

19.

Lorenzen, Carl J., et al.. (1963). EUTROPHICATION OF A TIDAL ESTUARY. Limnology and Oceanography. 8(2). 251–262. 21 indexed citations

20.

Lorenzen, Carl J.. (1963). DIURNAL VARIATION IN PHOTOSYNTHETIC ACTIVITY OF NATURAL PHYTOPLANKTON POPULATIONS. Limnology and Oceanography. 8(1). 56–62. 88 indexed citations

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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