Home

Gallery

GA

SLN

Fieldwork

Langham

Links

The Geography Department

 

 

Hengistbury Head and Barton-on-Sea

 

Hengistbury Head - along the beach and back over the cliffs - October 2001

 

800-020_17.JPG (112378 bytes)

800-021_18.JPG (113082 bytes)

800-022_19.JPG (86239 bytes)

 

Gabions and stone groyne near the Double Dykes.

 

SW force 6, neap high tide is reaching the foot of the cliffs.

 

Looking W to Bournemouth.

 

800-020_17.JPG  112kb

800-021_18.JPG  113kb

 

 

 

800-022_19.JPG  86kb

600-023_20.JPG (160318 bytes)

800-024_21.JPG (152829 bytes)

800-024_21.JPG  153kb

 

800-025_22.JPG (137442 bytes)

800-026_23.JPG (117949 bytes)

 

The highest part of the cliff. Ironstones are the last material to be removed after slides.

 

Sub-aerial erosion is important - as is trampling!

 

The Long Groyne on the old civil boundary.  A dune habitat has been created.

600-023_20.JPG  160kb

800-025_22.JPG  137kb

 

 

 

800-025_22.JPG  118kb

800-027_24.JPG (104186 bytes)

600-029_26.JPG (161042 bytes)

800-028_25.JPG (84149 bytes)

 

Fencing protects the marram grass.

 

 

The cliff is lower at this end, rain-wash is important where there is bare ground.

 

A pile of spare beach seeding material?  Good contrast in wave energy as the coast direction changes, even so, there is beach starvation.

800-027_24.JPG  104kb

 

 

 

600-029_26.JPG  161kb

800-028_25.JPG  84kb

 

800-030_27.JPG (118952 bytes)

800-031_28.JPG (111834 bytes)

800-032_29.JPG (106684 bytes)

 

Christchurch spit.  Major change both from the SW facing beach, and between harbour and exposed beach.

 

The harbour is a very low energy environment, even in this gale force wind.  The large channels are man-made.

 

The spit has a seeded beach.  Each compartment shows refraction.

800-030_27.JPG  119kb

800-031_28.JPG  112kb

 

 

 

800-032_29.JPG  107kb

 

Hengistbury Head - along the beach and back over the cliffs - October 2001

 

 

 

Looking back to Bournemouth from the Double Dykes1

 

1024-10230037.jpg  97kb

 

 

 

 

 

 

 

 

General view of Hengistbury Head.  Some levels are natural, others due to quarrying.  The beach is 2m. below the gabion top.

 

Gabion defences and stone groyne.

 

 

 

Gabion defences, a stone groyne, and Bournemouth in the background - looking west.

800-10230038.jpg

800-10230040.jpg

 

 

 

800-10230040.jpg

 

 

 

 

 

Wave energy is high on this coast. A rock groyne at the western end of Hengistbury Head.

 

 

Impressive differential erosion of the various sands and clays.  Rain-wash is obviously important in the long term if the cliff itself does not fall.

 

Pebbly, poorly cemented strata offer little resistance to wave attack.  The lowest layer is pure sand.

800-10230043.jpg

600-10230047.jpg 

 

 

 

800-10230045.jpg

 

 

Gullying and debris fans.  There is a small storm beach.

 

 

Debris fans overlap beneath the free face of the high cliffs.

 

 

 

Gullying on a fairly recent fall.  There had been heavy rain several times in the last few days, resulting in a fine sediment fan on the beach.

600-10230049.jpg  139kb

 

800-10230051.jpg  144kb

 

 

 

600-10230050.jpg  173kb

 

Ironstones, and a clear view of the cliff profile.

 

A variety of sediments.

 

 

Detail of the differential erosion.

 

800-10230052.jpg  122kb

 

600-10230055.jpg  184kb

 

 

 

800-10230053.jpg  221kb

 

 

Sediment stores at the Long Groyne.  The lack of beach after the groyne is very marked.

 

 

Groyne 61, usually known as the Long Groyne, marks the old Bournemouth boundary.

 

 

The east end of Hengistbury Head, groynes and beach seeding.  Bits of red concrete from the old promenade round the point can be found under the rocks near the cliff foot.

800-0230082.jpg  116kb

 

800-10230058.jpg  123kb

 

 

 

800-10230060.jpg  11kb

 

 

The groyne itself has been further protected.

 

 

Long Groyne and east end of Hengistbury Head.

 

Debris dams across a major gully, once the footpath to the beach.

600-10230061.jpg  147kb

 

800-10230063.jpg  121kb

 

 

 

600-10230075.jpg  158kb

 

 

The view of the spit from the cliff-top path.

 

 

The layout of the huts has not changed much.

 

 

 

The spit from a 1960s postcard.  The concrete from the old promenade is just visible, bottom right, and there is less vegetation.

800-10230078.jpg  101kb

 

800-10230076.jpg  132kb

 

 

 

chrstchspit1960s.gif  211kb

 

The human occupation of the spit is a narrow line between beach and saltmarsh.

 

A view of the groyne defences and the sediment cells they contain.

 

The Barn Centre, cafe and car park - this lowland is threatened by erosion, which will cut off the headland.

800-10230080.jpg  102kb

 

800-10230077.jpg  132kb

 

 

 

800-10230084.jpg  126kb

 

800-033_30.JPG (99029 bytes)

800-034_31.JPG (129832 bytes)

800-035_32.JPG (124950 bytes)

 

Barton-on-Sea. Rip rap  and rock groynes from the undercliff road.

 

Barton-on-Sea. Graded slopes - and rock soakaways for cliff drainage.

 

Barton-on-Sea.  SW facing again, force 6 wind and a sea running on the rock groyne.

800-033_30.JPG  99kb

 

800-034_31.JPG  130kb

 

 

 

800-035_32.JPG  125kb

 

800-036_33.JPG (113789 bytes)

800-037_34.JPG (121687 bytes)

800-038_35.JPG (160069 bytes)

 

The parade of cliff-top shops. there has been some stabilisation, as seen here by the vegetation, but an active free face remains behind the properties.

 

Access at the mid-cliff level.

 

 

 

Totally engineered cliff.

 

 

800-036_33.JPG  114kb

 

 

 

800-037_34.JPG  122kb

800-038_35.JPG  160kb

 

800-039_36.JPG (100974 bytes)

A view from the car park to the cliff-top shops in Barton. The gash is not a recent gully, but beach access. Railing in the foreground have divided the car park off, with the seaward side now considered too unsafe to use.

 

800-039_36.JPG  101kb

 

 

Hengistbury Head website

Gallery

Home