D. A. Walker

1.4k total citations
23 papers, 1.2k citations indexed

About

D. A. Walker is a scholar working on Atmospheric Science, Ecology and Plant Science. According to data from OpenAlex, D. A. Walker has authored 23 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 21 papers in Atmospheric Science, 9 papers in Ecology and 6 papers in Plant Science. Recurrent topics in D. A. Walker's work include Climate change and permafrost (19 papers), Geology and Paleoclimatology Research (11 papers) and Botany and Plant Ecology Studies (6 papers). D. A. Walker is often cited by papers focused on Climate change and permafrost (19 papers), Geology and Paleoclimatology Research (11 papers) and Botany and Plant Ecology Studies (6 papers). D. A. Walker collaborates with scholars based in United States, Australia and Puerto Rico. D. A. Walker's co-authors include Marilyn D. Walker, James C. Halfpenny, Carol A. Wessman, K. R. Everett, William A. Gould, G. J. Michaelson, Chien‐Lu Ping, James G. Bockheim, M. K. Raynolds and H. A. Maier and has published in prestigious journals such as Nature, Journal of Geophysical Research Atmospheres and Ecological Monographs.

In The Last Decade

D. A. Walker

23 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
D. A. Walker United States 13 960 344 171 125 76 23 1.2k
K. D. Tape United States 2 878 0.9× 348 1.0× 228 1.3× 130 1.0× 70 0.9× 2 1.1k
Christer Jonasson Sweden 16 737 0.8× 264 0.8× 251 1.5× 140 1.1× 60 0.8× 30 945
Janet C. Jorgenson United States 14 946 1.0× 282 0.8× 180 1.1× 120 1.0× 53 0.7× 22 1.2k
Nadya Matveyeva Sweden 14 1.0k 1.0× 410 1.2× 167 1.0× 88 0.7× 86 1.1× 25 1.3k
H. A. Maier United States 10 630 0.7× 352 1.0× 134 0.8× 51 0.4× 42 0.6× 13 856
P. J. Webber United States 18 767 0.8× 335 1.0× 120 0.7× 104 0.8× 148 1.9× 38 1.1k
Amy Breen United States 18 923 1.0× 320 0.9× 346 2.0× 61 0.5× 57 0.8× 57 1.2k
Lorna E. Street United Kingdom 20 768 0.8× 481 1.4× 358 2.1× 134 1.1× 127 1.7× 31 1.2k
E. S. Melnikov Russia 5 917 1.0× 340 1.0× 132 0.8× 48 0.4× 54 0.7× 6 1.1k
Monika P. Calef United States 13 506 0.5× 321 0.9× 569 3.3× 95 0.8× 50 0.7× 17 952

Countries citing papers authored by D. A. Walker

Since Specialization
Citations

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

Fields of papers citing papers by D. A. Walker

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by D. A. Walker. 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 D. A. Walker. The network helps show where D. A. Walker may publish in the future.

Co-authorship network of co-authors of D. A. Walker

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

All Works

20 of 20 papers shown
1.
Frost, Gerald V., Uma S. Bhatt, Howard E. Epstein, et al.. (2020). Arctic Report Card 2020: Tundra Greenness. National Oceanic and Atmospheric Administration (NOAA) - NOAA Central Library. 13 indexed citations
2.
Farquharson, Louise, V. E. Romanovsky, A. L. Kholodov, et al.. (2019). Long-term monitoring of permafrost degradation documents two forms of landscape response. AGU Fall Meeting Abstracts. 2019. 1 indexed citations
3.
Epstein, Howard E., Uma S. Bhatt, D. A. Walker, M. K. Raynolds, & Xingwu Yang. (2017). Arctic Tundra Greening and Browning at Circumpolar and Regional Scales. AGU Fall Meeting Abstracts. 2017. 1 indexed citations
4.
Frost, Gerald V., Matthew J. Macander, Anna Liljedahl, & D. A. Walker. (2015). Regional Patterns of Ice-Wedge Degradation Across Northern Alaska: What Does Asynchronous Timing of Onset Tell Us Regarding Triggering Mechanisms, Thresholds, and Impacts?. AGU Fall Meeting Abstracts. 2015. 1 indexed citations
5.
Walker, D. A., Amy Breen, M. K. Raynolds, & Marilyn D. Walker. (2013). Arctic Vegetation Archive (AVA) Workshop. Krakow, Poland, April 14-16, 2013. 2 indexed citations
6.
Walker, D. A., M. K. Raynolds, H. A. Maier, et al.. (2010). Circumpolar geobotanical mapping: a web-based plant-to-planet approach for vegetation-change analysis in the Arctic. 1. 4 indexed citations
7.
Epstein, Howard E., D. A. Walker, M. K. Raynolds, et al.. (2009). Vegetation biomass, leaf area index, and NDVI patterns and relationships along two latitudinal transects in arctic tundra. AGU Fall Meeting Abstracts. 2009. 3 indexed citations
8.
Kuss, Patrick, Anja Kade, Corinne M. Vonlanthen, et al.. (2006). Vegetation Differentiation of Arctic Patterned-ground Ecosystems. AGUFM. 2006. 1 indexed citations
9.
Beringer, Jason, William A. Gould, F. Stuart Chapin, et al.. (2004). The nature of spatial transitions in the Arctic. Journal of Biogeography. 31(12). 1917–1933. 99 indexed citations
10.
Walker, D. A., Gensuo Jia, Howard E. Epstein, et al.. (2002). Vegetation-Soil-Active Layer Relationships Along a Low-Arctic Bioclimate Gradient, Alaska. AGUFM. 2002. 3 indexed citations
11.
Walker, D. A., William A. Gould, H. A. Maier, & M. K. Raynolds. (2002). The Circumpolar Arctic Vegetation Map: AVHRR-derived base maps, environmental controls, and integrated mapping procedures. International Journal of Remote Sensing. 23(21). 4551–4570. 118 indexed citations
12.
Walker, D. A.. (1999). An integrated vegetation mapping approach for northern Alaska (1:4 M scale). International Journal of Remote Sensing. 20(15-16). 2895–2920. 31 indexed citations
13.
Nelson, Frederick E., et al.. (1998). Active‐layer thickness in north central Alaska: Systematic sampling, scale, and spatial autocorrelation. Journal of Geophysical Research Atmospheres. 103(D22). 28963–28973. 111 indexed citations
14.
Ping, Chien‐Lu, James G. Bockheim, J. M. Kimble, G. J. Michaelson, & D. A. Walker. (1998). Characteristics of cryogenic soils along a latitudinal transect in arctic Alaska. Journal of Geophysical Research Atmospheres. 103(D22). 28917–28928. 142 indexed citations
15.
Walker, D. A. & Carl J. Markon. (1996). Circumpolar Arctic vegetation mapping workshop. Antarctica A Keystone in a Changing World. 6 indexed citations
16.
Walker, D. A., Josef Svoboda, & Bill Freedman. (1995). Ecology of a Polar Oasis. Arctic and Alpine Research. 27(1). 99–99. 21 indexed citations
17.
Walker, D. A., James C. Halfpenny, Marilyn D. Walker, & Carol A. Wessman. (1993). Long-Term Studies of Snow-Vegetation Interactions. BioScience. 43(5). 287–301. 273 indexed citations
18.
Walker, D. A. & K. R. Everett. (1991). Loess Ecosystems of Northern Alaska: Regional Gradient and Toposequence at Prudhoe Bay. Ecological Monographs. 61(4). 437–464. 104 indexed citations
19.
Walker, D. A., et al.. (1986). Northern Ecology and Resource Management: Memorial Essays Honouring Don Gill. Arctic and Alpine Research. 18(1). 127–127. 8 indexed citations
20.
Walker, D. A., Susan K. Short, John T. Andrews, & P. J. Webber. (1981). Late Holocene Pollen and Present-Day Vegetation, Prudhoe Bay and Atigun River, Alaskan North Slope. Arctic and Alpine Research. 13(2). 153–153. 17 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by K. D. Tape Breakdown of academic impact, for papers by Christer Jonasson Breakdown of academic impact, for papers by Janet C. Jorgenson Breakdown of academic impact, for papers by Nadya Matveyeva Breakdown of academic impact, for papers by H. A. Maier Breakdown of academic impact, for papers by P. J. Webber Breakdown of academic impact, for papers by Amy Breen Breakdown of academic impact, for papers by Lorna E. Street Breakdown of academic impact, for papers by E. S. Melnikov Breakdown of academic impact, for papers by Monika P. Calef
Rankless by CCL
2026