1.0.0 School of Earth and Environment, University of Leeds
1.0.1 IMSI
1.0.2 Chris Martin
1.0.3 Yorkshire Water
1.0.4 IMSI
1.0.5 Chris Martin
1.0.6 Andrew Clarke
1.0.7 IMSI
1.1.1 NASA Goddard Space Flight Centre, Maryland, USA,
http://visibleearth.nasa.gov/view.php?id=55418
1.2.1 School of Earth and Environment, University of Leeds after
Baumgartner and Reichel, 1975
1.3.1 School of Earth and Environment, University of Leeds
1.4.1 School of Earth and Environment, University of Leeds
1.5.1 http://s0.geograph.org.uk/photos/38/51/385159_72fae113.jpg
1.5.2
https://commons.wikimedia.org/wiki/File:Hudson_river_from_bear_mountain_bridge.jpg
1.5.3
http://s0.geograph.org.uk/geophotos/01/14/42/1144236_34883eb3.jpg
1.6.1 School of Earth and Environment, University of Leeds after
Craig, J.R, Vaughan, J and Skinner, B.J
1.7.1 Sally Macgill
1.7.2 Adrian MacDonald
1.7.3 Chris Martin
2.0.0 School of Earth and Environment, University of Leeds
2.0.1 John Bolton
2.0.2 James Groves
2.0.3 Andrew Evans and Michael Crabtree
2.1.1 School of Earth and Environment, University of Leeds
2.2.1 School of Earth and Environment, University of Leeds
2.3.1
http://commons.wikimedia.org/wiki/File:Wandering_in_the_desert.jpg
2.3.2 http://commons.wikimedia.org/wiki/File:Forest_Osaka_Japan.jpg
2.3.3 http://www.geograph.org.uk/photo/2292619
2.4.1
http://commons.wikimedia.org/wiki/File:Cricieth-Criccieth_-_Ffordd_Porthmadog_-_geograph.org.uk_-_1614579.jpg
2.5.1 NASA Goddard Space Flight Centre, Maryland, USA
2.6.1 Chris Martin
2.7.1
https://commons.wikimedia.org/wiki/File:Electromagnetic-Spectrum.png
2.8.1 Rob Raiswell
3.0.0 School of Earth and Environment, University of Leeds
3.1.1 http://commons.wikimedia.org/wiki/File:Water_drop_collision.jpg
3.2.1 http://commons.wikimedia.org/wiki/File:Pont_du_Gard_Oct_2007.jpg
3.3.1 School of Earth and Environment, University of Leeds after
McDonald and Kay 1988 after Korzoun and Sokolov 1978
3.4.1 School of Earth and Environment, University of Leeds after FAO
2011. See http://fao.org/nr/water/aquastat/data
3.5.1 http://commons.wikimedia.org/wiki/File:SrisailamDam01-India.jpg
4.0.0 School of Earth and Environment, University of Leeds after IMSI
4.1.1 NASA Goddard Space Flight Centre, Maryland, USA
4.2.1 School of Earth and Environment, University of Leeds after
Tarbuck and Lutgens 1997
4.3.1 BP/Southampton Oceanographic Institute
4.3.2 Chris Martin
4.3.3 Cambrian Water
4.4.1 Mike Krom after Bearman 1989
4.5.1 Kurt Konhauser
4.6.1 School of Earth and Environment, University of Leeds after Mike
Krom
4.7.1 IMSI
4.8.1 School of Earth and Environment, University of Leeds
4.9.1 School of Earth and Environment, University of Leeds
4.10.1 NASA Goddard Space Flight Center, Maryland, USA
4.11.1 Stephen Compton
4.12.1 School of Earth and Environment, University of Leeds
5.0.0 School of Earth and Environment, University of Leeds
5.0.1 Coral Kays
5.0.2 William Timmis
5.0.3 Chris Martin
5.0.4 Chris Martin
5.0.5 IMSI
5.0.6 IMSI
5.0.7 IMSI
5.0.8 IMSI
5.1.1 Bill Wood
5.2.1
https://commons.wikimedia.org/wiki/File:Crown_of_Thorns-jonhanson.jpg
5.3.1 Bill Wood
5.4.1http://www.flickr.com/photos/dmap/3346265857/
5.5.1http://www.geograph.org.uk/photo/266951
5.5.2http://commons.wikimedia.org/wiki/File:Running_Water_-_geograph.org.uk_-_1273131.jpg
5.5.3https://commons.wikimedia.org/wiki/File:Aerial-view-of-marsh.jpg
5.6.1http://commons.wikimedia.org/wiki/File:Wetlands_%28Moscow,_Russia%29.jpg
5.7.1http://commons.wikimedia.org/wiki/File:Fish_floating_in_waterways_near_Point_a_la_Hache.jpg
5.8.1http://www.geograph.org.uk/photo/2805400
5.9.1 Mason 1996
5.9.2 Mason 1996
5.10.1 IMSI
5.10.2 IMSI
5.10.3 IMSI
5.10.4 IMSI
5.11.1 IMSI
5.11.2 IMSI
5.11.3 John Soussan
5.12.1 School of Earth and Environment, University of Leeds
5.13.1 Andrew Clarke
5.13.2 David Kay
5.13.3 Chris Martin