Betts HD, Rouder P 2011. Making better use of LiDAR in soil and landscape modeling. Soil horizons 20: 10-11.
Dymond JR, Betts HD, Schierlitz CF 2010. An erosion model for evaluating regional land-use scenarios. Environmental modelling & software 25: 289-298.
Marden M, Betts H, Arnold G, Hambling R 2008. Gully erosion and sediment load: Waipaoa, Waiapu and Uawa rivers, eastern North Island, New Zealand. In: Schmidt Jea ed. Proceedings: Sediment dynamics in changing environments: symposium of the International Commission on Continental Erosion, Christchurch, NZ, 1-5 December, 2008. Pp. 339-350.
Page M, Marden M, Kasai M, Gomez B, Peacock D, Betts H, Parkner T, Marutani T, Trustrum N 2008. Changes in basin-scale sediment supply and transfer in a rapidly transformed New Zealand landscape. In: Habersack H, Piegay H, Rinaldi M ed. Gravel-bed rivers VI: from process to understanding to river restoration. Developments in earth science processes ; 11. Amsterdam, Elsevier. Pp. 337-358.
Betts H, Brown L, Burrows L 2005. [Poster abstract] Detecting and mapping forest canopy gaps using Digital Elevation Models built from aerial photography : success remains elusive. Ecology at the water's edge : New Zealand Freshwater Sciences Society, New Zealand Ecological Society joint conference: 28 August - 1 September 2005, Rutherford Hotel, Nelson. [Nelson], [The conference]. Pp. [unpaged]-.
Betts HD, Brown LJ, Stewart GH 2005. Forest canopy gap detection and characterisation by the use of high-resolution Digital Elevation Models. New Zealand Journal of Ecology 29(1): 95-103.
Marden M, Betts H, Fuller IC, Rowan D, Goodier C 2005. [Abstract] Geomorphic history of a steepland gullymass movement complex : Tarndale gully, Mangatu Forest, North Island, New Zealand. In: Gutiérrez F, Gutiérrez M, Desir G, Guerrero J, Lucha P, Marin C, García-Ruiz JM ed. Geomorphology in regions of environmental contrasts : 6th International Conference on Geomorphology, Zaragoza, (Spain) September 7-11, 2005 : abstracts volume. Zaragoza, Spanish Society of Geomorphology (SEG). Pp. 137-.
Betts HD, Trustrum NA, De Rose RC 2003/9. Geomorphic changes in a complex gully system measured from sequential digital elevation models, and implications for management. Earth surface processes and landforms 28(10): 1043-1058.