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IMG_1988

Images, eqnz.chch.2010

Broken water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

IMG_1990

Images, eqnz.chch.2010

Broken water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

IMG_2012

Images, eqnz.chch.2010

Burst water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

IMG_2009

Images, eqnz.chch.2010

Burst water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

IMG_2007

Images, eqnz.chch.2010

Burst water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

IMG_2002

Images, eqnz.chch.2010

Burst water main causes flooding on the street after the magnitude 7.1 earthquake in Christchurch on Saturday 4-9-2010.

Modelling stormwater management options for enhancing water quality of urb…

Research papers, University of Canterbury Library

The majority of Christchurch’s stormwater has historically been discharged untreated directly into urban surface waterways. These receiving waterways have become adversely affected by the contaminants carried in the stormwater, particularly sediment and heavy metals. An event-based contaminant load model was developed to identify the distribution and magnitude of contaminant loads entering the waterway, as well as to assess the reduction in TSS and heavy metal loads that can be achieved by various stormwater management options. The GIS-Excel based model estimates contaminant loads from an individual storm event based on different contributing impervious surfaces and key rainfall characteristics (rainfall intensity, duration, pH and antecedent dry days). It then calculates contaminant reduction loads that could be achieved through source reduction (e.g. green roofs, repainting) as well as from treatment (e.g. raingardens, wet ponds) applied to different surfaces within the catchment. This model differs from other annual load models as it is event-based and accounts for storm characteristics in its calculation of contaminant loads. Christchurch is a valuable case setting due the unique opportunity for retrofitting improved stormwater management in the post-earthquake rebuild. It is anticipated that this modelling approach could later be adapted for use in other urban settings outside of Christchurch.

Christchurch Press Image: David Hallett, 2011:02:23 01:06:22

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage from the February 22nd earthquake in Christchurch. People queuing and waiting for water at Redcliffs School".

Christchurch Press Image: David Hallett, 2011:02:23 01:06:49

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage from the February 22nd earthquake in Christchurch. People queuing and waiting for water at Redcliffs School".

Christchurch Press Image: David Hallett, 2011:02:23 00:56:09

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damage from the February 22nd earthquake in Christchurch. People queuing and waiting for water at Redcliffs School".

Dominion Post Image: Ross Giblin 2010:09:05 14:13:47

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Shelves low on stocks of water at Chaffers New World supermarket after the 7.1 earthquake in Christchurch".

Northern Outlook Image: Laura Melville 2010:09:04 01:40:47

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Volcano holes. Small volcano-shaped mounds indicate the force of water being pushed out by the earth's movement".

Christchurch Press Image: David Hallett 2010:09:15 03:28:54

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Quake damage to farms near the quake centre at Greendale. Murray Rowlands from Federated Farmers with damaged water pipes".

Christchurch Press Image: David Hallett 2010:09:08 05:39:04

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Workers from Calcon repair burst water pipes at the corner of Avonside Drive and Linwood Avenue after Saturday's earthquake".

Christchurch Press Image: John Kirk-Anderson 2011:01:11 14:41:09

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damaged well at the earthquake-damaged water pumping station on the corner of New Brighton Road and Palmers Road".

Christchurch Press Image: John Kirk-Anderson 2011:01:11 14:40:39

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Damaged well at the earthquake-damaged water pumping station on the corner of New Brighton Road and Palmers Road".

Christchurch Press Image: David Hallett 2010:09:08 05:39:11

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Workers from Calcon repair burst water pipes at the corner of Avonside Drive and Linwood Avenue after Saturday's earthquake".

Christchurch Press Image: David Hallett 2010:09:08 05:40:16

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Workers from Calcon repair burst water pipes at the corner of Avonside Drive and Linwood Avenue after Saturday's earthquake".

Christchurch Press Image: David Hallett 2010:09:08 05:38:54

Images, UC QuakeStudies

Photograph captioned by Fairfax, "Workers from Calcon repair burst water pipes at the corner of Avonside Drive and Linwood Avenue after Saturday's earthquake".

Midday News for 14 June 2011

Audio, Radio New Zealand

Thousands in Christchurch still without power and water supply after yesterday's earthquakes and the government will soon decide which suburbs must be abandoned.