My Projection Collection:
Compare Projections
Eckert IV vs. Nell-Hammer modified
| Eckert IV | Nell-Hammer modified | |
|---|---|---|
| Creator | Max Eckert-Greifendorff (1906) | H.H. Ernst von Hammer, Karlheinz Wagner (1949) |
| Group | Pseudocylindric | Pseudocylindric |
| Property | Equal-area | Equal-area |
| Other Names | — | — |
| Remarks | — | The original Nell-Hammer (1900) was derived from the Nell projection. This modified version was introduced in 1949 by Karlheinz Wagner and allows to set arbitrary standard parallels. The image shows the modified Nell-Hammer with standard parallels at ≈ 42°12′ N/S, which were chosen by Wagner to offer a closely matching alternative to Eckert IV which can be calculated using a considerably easier formula. (The exact value that I used for the standard parallels is 42°12′49.284″ – not that it really matters…) |
| recommended comparisons | Equal Earth Hufnagel 10 Hufnagel 9 Natural Earth II Nell-Hammer modified Wagner IV |
Eckert IV |
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This pairing is among the list of recommended pairings – but why? Modified Nell-Hammer is intended to be an easier to calculate alternative to Eckert IV. |
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Remark: On these two projections, »scaled to fit« and »scaled to same width« will be quite identical!
1. Comparison: Physical Map – scaled to fit
Eckert IV
Nell-Hammer modified
2. Comparison: Political Map – scaled to fit
Eckert IV
Nell-Hammer modified
3. Comparison: Silhouette Map – scaled to fit
4. Comparison: Tissot Indicatrix, 30° – scaled to fit
Eckert IV
Nell-Hammer modified
5. Comparison: Physical Map – scaled to same width
Eckert IV
Nell-Hammer modified
6. Comparison: Political Map – scaled to same width
Eckert IV
Nell-Hammer modified
7. Comparison: Silhouette Map – scaled to same width
8. Comparison: Tissot Indicatrix, 30° – scaled to same width
Eckert IV
Nell-Hammer modified
9. Comparison: Tissot Indicatrix, 15° – scaled to fit
Eckert IV
Nell-Hammer modified
10. Comparison: Tissot Indicatrix, 15° – scaled to same width
Eckert IV
Nell-Hammer modified
