Irfan Ullah

1.0k total citations
29 papers, 735 citations indexed

About

Irfan Ullah is a scholar working on Global and Planetary Change, Water Science and Technology and Atmospheric Science. According to data from OpenAlex, Irfan Ullah has authored 29 papers receiving a total of 735 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Global and Planetary Change, 9 papers in Water Science and Technology and 8 papers in Atmospheric Science. Recurrent topics in Irfan Ullah's work include Climate variability and models (17 papers), Hydrology and Drought Analysis (12 papers) and Hydrology and Watershed Management Studies (7 papers). Irfan Ullah is often cited by papers focused on Climate variability and models (17 papers), Hydrology and Drought Analysis (12 papers) and Hydrology and Watershed Management Studies (7 papers). Irfan Ullah collaborates with scholars based in China, Pakistan and United States. Irfan Ullah's co-authors include Muhammad Arshad, Xieyao Ma, Waheed Ullah, Jun Yin, Vedaste Iyakaremye, Mengyang Liu, Muhammad Bilal, Farhan Mustafa, Rashid Iqbal and Muhammad Shahzaman and has published in prestigious journals such as Geophysical Research Letters, Sustainability and Remote Sensing.

In The Last Decade

Irfan Ullah

26 papers receiving 724 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Irfan Ullah China	13	539	200	148	146	111	29	735
Mohammad Reza Kousari Iran	16	731 1.4×	151 0.8×	175 1.2×	234 1.6×	128 1.2×	19	875
Gengxi Zhang China	20	726 1.3×	172 0.9×	125 0.8×	346 2.4×	105 0.9×	45	878
Arpita Mondal India	17	667 1.2×	265 1.3×	111 0.8×	249 1.7×	109 1.0×	47	829
Javad Bazrafshan Iran	16	636 1.2×	145 0.7×	136 0.9×	280 1.9×	119 1.1×	47	802
K. Koteswara Rao India	15	538 1.0×	330 1.6×	115 0.8×	108 0.7×	84 0.8×	39	691
Lingcheng Li United States	14	614 1.1×	227 1.1×	68 0.5×	295 2.0×	97 0.9×	35	772
Abubaker Omer China	11	576 1.1×	144 0.7×	121 0.8×	350 2.4×	114 1.0×	14	775
Seyni Salack Germany	17	463 0.9×	249 1.2×	205 1.4×	91 0.6×	51 0.5×	40	756
B. Shifteh Some’e Iran	11	811 1.5×	246 1.2×	147 1.0×	282 1.9×	149 1.3×	11	962
Jan Bliefernicht Germany	18	683 1.3×	431 2.2×	91 0.6×	170 1.2×	109 1.0×	46	860

Countries citing papers authored by Irfan Ullah

Since Specialization

Citations

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

Fields of papers citing papers by Irfan Ullah

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Irfan Ullah. 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 Irfan Ullah. The network helps show where Irfan Ullah may publish in the future.

Co-authorship network of co-authors of Irfan Ullah

This figure shows the co-authorship network connecting the top 25 collaborators of Irfan Ullah. A scholar is included among the top collaborators of Irfan Ullah 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 Irfan Ullah. Irfan Ullah 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

Zeng, Xin‐Min, et al.. (2025). Attributing spatiotemporal evolution and driving factors of meteorological drought across Yangtze River Basin, China. Atmospheric Research. 323. 108155–108155. 5 indexed citations

Ullah, Irfan, et al.. (2025). Unravelling Southern Ocean sea surface temperatures impacts on long rainfall variability in East Africa. Atmospheric Research. 327. 108406–108406.

Alsafadi, Karam, Irfan Ullah, Amit Kumar Srivastava, et al.. (2025). Urbanization’s dual role in the exacerbation and mitigation of drought dynamics in China. npj Urban Sustainability. 5(1).

Zeng, Xin‐Min, et al.. (2025). Strong Spatial Propagation Strength of Meteorological Droughts Exhibits in the Humid—Arid Transition Regions of Mainland China. Geophysical Research Letters. 52(13).

Ullah, Irfan, Xin‐Min Zeng, Sidra Syed, et al.. (2025). How Significant is Projected Drought Risk in Pakistan Under a Warmer Climate?. Earth Systems and Environment. 9(4). 3531–3550. 2 indexed citations

Zeng, Xin‐Min, et al.. (2024). Attribution of Moisture Sources for Summer Precipitation in the Upstream Catchment of the Three Gorges Dam. Journal of Hydrometeorology. 25(2). 353–369. 14 indexed citations

Zeng, Xin‐Min, et al.. (2024). Impacts of Land–Atmosphere Interactions on Boundary Layer Variables: A Classification Perspective from Modeling Approaches. Atmosphere. 15(6). 650–650. 3 indexed citations

Chen, Junfei, et al.. (2024). Application of RNN-LSTM in Predicting Drought Patterns in Pakistan: A Pathway to Sustainable Water Resource Management. Water. 16(11). 1492–1492. 11 indexed citations

Saleem, Farhan, Wenxia Zhang, Saadia Hina, et al.. (2023). Population Exposure Changes to Mean and Extreme Climate Events Over Pakistan and Associated Mechanisms. GeoHealth. 7(10). e2023GH000887–e2023GH000887. 18 indexed citations

10.

Farooq, Umar, et al.. (2023). Flood Modelling and Risk Analysis of Cinan Feizuo Flood Protection Area, Huaihe River Basin. Atmosphere. 14(4). 678–678. 12 indexed citations

11.

Ullah, Rahat, Jahangir Khan, Irfan Ullah, Faheem Khan, & Youngmoon Lee. (2023). Investigating Drought and Flood Evolution Based on Remote Sensing Data Products over the Punjab Region in Pakistan. Remote Sensing. 15(6). 1680–1680. 9 indexed citations

12.

Saleem, Farhan, et al.. (2023). Impacts of irregular and strategic lockdown on air quality over Indo-Pak Subcontinent: Pre-to-post COVID-19 analysis. Chaos Solitons & Fractals. 178. 114255–114255. 7 indexed citations

13.

Ullah, Rahat, Jahangir Khan, Irfan Ullah, Faheem Khan, & Youngmoon Lee. (2023). Assessing Impacts of Flood and Drought over the Punjab Region of Pakistan Using Multi-Satellite Data Products. Remote Sensing. 15(6). 1484–1484. 14 indexed citations

14.

Ullah, Irfan, Xin‐Min Zeng, Saadia Hina, et al.. (2023). Recent and projected changes in water scarcity and unprecedented drought events over Southern Pakistan. Frontiers in Earth Science. 11. 18 indexed citations

15.

Sajjad, Meer Muhammad, et al.. (2022). Impact of Climate and Land-Use Change on Groundwater Resources, Study of Faisalabad District, Pakistan. Atmosphere. 13(7). 1097–1097. 53 indexed citations

16.

Shahzaman, Muhammad, Weijun Zhu, Muhammad Bilal, et al.. (2021). Remote Sensing Indices for Spatial Monitoring of Agricultural Drought in South Asian Countries. Remote Sensing. 13(11). 2059–2059. 84 indexed citations

17.

Shahzaman, Muhammad, Weijun Zhu, Irfan Ullah, et al.. (2021). Comparison of Multi-Year Reanalysis, Models, and Satellite Remote Sensing Products for Agricultural Drought Monitoring over South Asian Countries. Remote Sensing. 13(16). 3294–3294. 90 indexed citations

18.

Ahmed, Waqar, et al.. (2021). Integration of Sentinel-2 Derived Spectral Indices and In-situ Forest Inventory to Predict Forest Biomass. 64(2). 119–130. 2 indexed citations

19.

Ullah, Irfan, et al.. (2014). Sulfur oxidizing bacteria from sulfur rich ecologies exhibit high capability of phosphorous solubilization.. International Journal of Agriculture and Biology. 16(3). 550–556. 12 indexed citations

20.

Ullah, Irfan. (2013). Enhancing Bio-Available Phosphorous in Soil Through Sulfur Oxidation by Thiobacilli. British Microbiology Research Journal. 3(3). 378–392. 10 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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