Yip, Ngai Yin
Columbia University
Rank:
Overall Rank
Rank in the SubField 1
Publications
Citations
Data for the year: 2026
Main Field
Earth & Environmental Sciences
SubField 1
Environmental Sciences
SubField 2
Chemical Engineering
Rank in the SubField 1 (Environmental Sciences): 2010 out of 140934 authors
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 88731 | 92844 |
| Total Cites | 802 | 841 |
| H-index | 16.00 | 16.00 |
| Hm-index | 7.93 | 8.94 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 8 | 8 |
| Total Cites to Single+First Authored Papers | 137 | 138 |
| Number of Single+First+Last Authored Papers | 40 | 40 |
| Total Cites to Single+First+Last Authored Papers | 435 | 456 |
| Composite Score | 2.78 | 2.80 |
| Number of Distinct Citing Papers | 645.00 | 660.00 |
| Ratio of Total Citations to Distinct Citing Papers | 1.24 | 1.27 |
| Self-Citation Percentage: | ||
Data for the year: 2025
Main Field
Earth & Environmental Sciences
SubField 1
Environmental Sciences
SubField 2
Chemical Engineering
Rank in the SubField 1 (Environmental Sciences): 1418 out of 130223 authors
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 63135 | 68469 |
| Total Cites | 867 | 918 |
| H-index | 18.00 | 18.00 |
| Hm-index | 8.83 | 9.46 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 8 | 8 |
| Total Cites to Single+First Authored Papers | 167 | 169 |
| Number of Single+First+Last Authored Papers | 37 | 37 |
| Total Cites to Single+First+Last Authored Papers | 478 | 503 |
| Composite Score | 2.87 | 2.88 |
| Number of Distinct Citing Papers | 633.00 | 648.00 |
| Ratio of Total Citations to Distinct Citing Papers | 1.37 | 1.42 |
| Self-Citation Percentage: | ||
Data for the year: 2024
Main Field
Earth & Environmental Sciences
SubField 1
Environmental Sciences
SubField 2
Chemical Engineering
Rank in the SubField 1 (Environmental Sciences): 1546 out of 115291 authors
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 77038 | 84210 |
| Total Cites | 727 | 783 |
| H-index | 16.00 | 16.00 |
| Hm-index | 7.76 | 8.19 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 8 | 8 |
| Total Cites to Single+First Authored Papers | 158 | 162 |
| Number of Single+First+Last Authored Papers | 34 | 34 |
| Total Cites to Single+First+Last Authored Papers | 376 | 400 |
| Composite Score | 2.80 | 2.80 |
| Number of Distinct Citing Papers | 538.00 | 551.00 |
| Ratio of Total Citations to Distinct Citing Papers | 1.35 | 1.42 |
| Self-Citation Percentage: | ||
Data for the year: 2023
Main Field
Earth & Environmental Sciences
SubField 1
Environmental Sciences
SubField 2
Chemical Engineering
Rank in the SubField 1 (Environmental Sciences): 1106 out of 99567 authors
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 66688 | 72493 |
| Total Cites | 790 | 860 |
| H-index | 16.00 | 16.00 |
| Hm-index | 8.77 | 8.93 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 8 | 8 |
| Total Cites to Single+First Authored Papers | 200 | 215 |
| Number of Single+First+Last Authored Papers | 28 | 28 |
| Total Cites to Single+First+Last Authored Papers | 366 | 416 |
| Composite Score | 2.87 | 2.88 |
| Number of Distinct Citing Papers | 591.00 | 615.00 |
| Ratio of Total Citations to Distinct Citing Papers | 1.34 | 1.40 |
| Self-Citation Percentage: | ||
Data for the year: 2022
Main Field
Earth & Environmental Sciences
SubField 1
Environmental Sciences
SubField 2
Chemical Engineering
Rank in the SubField 1 (Environmental Sciences): 722 out of 86604 authors
| Metrics | Self-Citations Excluded | All |
|---|---|---|
| Rank Based on Composite Score | 57267 | 61464 |
| Total Cites | 801 | 848 |
| H-index | 19.00 | 20.00 |
| Hm-index | 7.51 | 7.76 |
| Number of Single Authored Papers | 0 | 0 |
| Total Cites to Single Authored Papers | 0 | 0 |
| Number of Single+First Authored Papers | 8 | 8 |
| Total Cites to Single+First Authored Papers | 246 | 258 |
| Number of Single+First+Last Authored Papers | 22 | 22 |
| Total Cites to Single+First+Last Authored Papers | 384 | 414 |
| Composite Score | 2.91 | 2.94 |
| Number of Distinct Citing Papers | 555.00 | 574.00 |
| Ratio of Total Citations to Distinct Citing Papers | 1.44 | 1.48 |
| Self-Citation Percentage: | ||
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