title: Facilitating rafting on the Kaituna River: The effect of manipulating Lake Rotoiti outflow on the function of the Ohau diversion wall

authors: Jones, Hannah Frances Emily

abstract: The University of Waikato was requested by Bay of Plenty Regional Council to quantify the effectiveness of the Ohau diversion wall when controlling the Kaituna River outflow during high and low flows. The Ohau diversion wall was constructed to divert nutrient-enriched water from Lake Rotorua away from the main basin of Lake Rotoiti and towards the Kaituna River outflow. Bay of Plenty Regional Council wished to determine whether controlling the Lake Rotoiti outflow to enable rafting on the Kaituna River would impact on the efficacy of the Ohau diversion wall.
The Kaituna River is used for commercial and recreational white-water rafting and kayaking, and is a proposed venue for the 2013 World Rafting Championships. However, control of the Kaituna outflow to regulate the water level in the lake may conflict with the use of the Kaituna River for rafting, which requires discharge to be between minimum and maximum raftable flows (13 m³ s⁻¹ and 26 m³ s⁻¹, respectively). Outflow from the lake may be controlled so that flows in the river are within the raftable range for a number of hours a day, and then adjusted for the remainder of the day to prevent high or low water levels. However, it is possible that this may affect the efficacy of the Ohau diversion wall, leading to concerns that this mode of operation could impact on the water quality in Lake Rotoiti. To address these concerns, three-dimensional hydrodynamic modelling was used to quantify the transfer of water from the Ohau channel to Lake Rotoiti under scenarios that facilitated rafting operations. The model was set up so that a tracer (transported by water flow) would be released in the Ohau inflow for the duration of the simulation. Tracer concentrations were output from the model simulations as depth profiles for five stations in the lake to quantify the transport of water from the Ohau channel into Lake Rotoiti.

text: Facilitating rafting on the Kaituna River: The effect of manipulating Lake Rotoiti outflow on the function of the Ohau diversion wall The University of Waikato was requested by Bay of Plenty Regional Council to quantify the effectiveness of the Ohau diversion wall when controlling the Kaituna River outflow during high and low flows. The Ohau diversion wall was constructed to divert nutrient-enriched water from Lake Rotorua away from the main basin of Lake Rotoiti and towards the Kaituna River outflow. Bay of Plenty Regional Council wished to determine whether controlling the Lake Rotoiti outflow to enable rafting on the Kaituna River would impact on the efficacy of the Ohau diversion wall.
The Kaituna River is used for commercial and recreational white-water rafting and kayaking, and is a proposed venue for the 2013 World Rafting Championships. However, control of the Kaituna outflow to regulate the water level in the lake may conflict with the use of the Kaituna River for rafting, which requires discharge to be between minimum and maximum raftable flows (13 m³ s⁻¹ and 26 m³ s⁻¹, respectively). Outflow from the lake may be controlled so that flows in the river are within the raftable range for a number of hours a day, and then adjusted for the remainder of the day to prevent high or low water levels. However, it is possible that this may affect the efficacy of the Ohau diversion wall, leading to concerns that this mode of operation could impact on the water quality in Lake Rotoiti. To address these concerns, three-dimensional hydrodynamic modelling was used to quantify the transfer of water from the Ohau channel to Lake Rotoiti under scenarios that facilitated rafting operations. The model was set up so that a tracer (transported by water flow) would be released in the Ohau inflow for the duration of the simulation. Tracer concentrations were output from the model simulations as depth profiles for five stations in the lake to quantify the transport of water from the Ohau channel into Lake Rotoiti.

year: 2013

title: Nutrient Budget for Lakes Rotoiti and Rotorua. Part I: Internal Nutrient Loads

authors: Hamilton, David P.

subjects: New Zealand

abstract: Time series data of temperature and concentrations of dissolved oxygen and nutrients (total nitrogen – TN, total phosphorus – TP, nitrate – NO³, ammonium – NH₄ and filterable reactive phosphorus - FRP) were examined for trends in Lake Rotoiti for 1981-82 and 1990-2003 and in Lake Rotorua for 2002-03. TP, NO₃, NH₄ in bottom waters (40-60m) of Lake Rotoiti, below the thermocline, were examined using regression equations to quantify seasonal transformations of TP, NO₃ and NH₄. There is a relatively linear build-up of phosphorus through time in the hypolimnion following the onset of stratification and initiation of deoxygenation until the time of winter mixing. When there were high frequency nutrient data for Lake Rotoiti (1981-82 at 60 m, 1991-94 at 60 m and 2001-02 at 40 m depth) the rate of seasonal phosphorus build-up could be quantified by regression to within a relatively narrow range of 111 mg TP m⁻³ yr⁻¹ (0.304 mg TP m⁻³  day⁻¹  ) in 1992-93 to 136 mg TP m⁻³ yr⁻¹(0.373 mg TP m⁻³  day⁻¹  )in 1981-82. Based on the first and last points of all the regression equations developed for TP increase, approximately 14.4 (1993-94) to 20.5 tonnes (2001-02) of phosphorus may be added to the hypolimnion of Lake Rotoiti during stratification. There is no evidence of a consistant interannual change in the seasonal build-up of phosphorus over the years considered and the reasons for interannual variations in the rates are not immediately apparent.

text: Nutrient Budget for Lakes Rotoiti and Rotorua. Part I: Internal Nutrient Loads Time series data of temperature and concentrations of dissolved oxygen and nutrients (total nitrogen – TN, total phosphorus – TP, nitrate – NO³, ammonium – NH₄ and filterable reactive phosphorus - FRP) were examined for trends in Lake Rotoiti for 1981-82 and 1990-2003 and in Lake Rotorua for 2002-03. TP, NO₃, NH₄ in bottom waters (40-60m) of Lake Rotoiti, below the thermocline, were examined using regression equations to quantify seasonal transformations of TP, NO₃ and NH₄. There is a relatively linear build-up of phosphorus through time in the hypolimnion following the onset of stratification and initiation of deoxygenation until the time of winter mixing. When there were high frequency nutrient data for Lake Rotoiti (1981-82 at 60 m, 1991-94 at 60 m and 2001-02 at 40 m depth) the rate of seasonal phosphorus build-up could be quantified by regression to within a relatively narrow range of 111 mg TP m⁻³ yr⁻¹ (0.304 mg TP m⁻³  day⁻¹  ) in 1992-93 to 136 mg TP m⁻³ yr⁻¹(0.373 mg TP m⁻³  day⁻¹  )in 1981-82. Based on the first and last points of all the regression equations developed for TP increase, approximately 14.4 (1993-94) to 20.5 tonnes (2001-02) of phosphorus may be added to the hypolimnion of Lake Rotoiti during stratification. There is no evidence of a consistant interannual change in the seasonal build-up of phosphorus over the years considered and the reasons for interannual variations in the rates are not immediately apparent.

year: 2004

title: Archetypes and the unthought: The projection of the King’s Court in New Zealand television media

authors: Mataira, Kelvin

abstract: This thesis explores archetypal projections of conflict in Television New Zealand’s news and current affairs as an unthought. The television news and current affairs programmes identified in the thesis relate to issues of conflict between the Maori people of New Zealand, and the Government and Crown agencies of New Zealand. The unresolved issues of conflict are manifest in what has become popularly known as the Treaty of Waitangi settlement process.

The thesis is informed by Foucault’s conviction that the unthought is the power that is linked to every mode of knowledge. The thesis argues that knowledge in relation to thought is limited because the knowledge is surrounded by an immense region of shadow. In an ontology based on thought only it is shown how the Shadow and the King’s Court archetypes conceal and prevent human beings from comprehending other discourses.

It is argued that Foucault’s concern with the unthought is reflected in Carl Gustav Jung’s convictions about the collective unconscious. Jung’s theory of the quarternio: thinking, sensing, intuition and feeling that describe the four functions of the mind, inform the theory and the methodology for the thesis. It is proposed that the discursive activities of television media can be understood in relation to Hermes the Greek God of magic, lies and illusion. It is further proposed that the images that are projected from television media can be informed by mythical accounts of Hermes’ behaviour and activity in relation to Zeus, Apollo, Dionysus, and Ares.

In the thesis, the quarternio and the Greek Gods are represented by the archetypes of the King’s Court. The Ruler archetype represents Zeus and Apollo as the thinking function of the mind. The Sage archetype is shown to be located in close proximity to the Ruler. The Warrior archetype represents Dionysus as the sensing function of the mind. The Magician archetype represents Hermes as the intuitive function of the mind. The Fool archetype represents Ares as the feeling function of the mind. The Destroyer archetype as the inferior and rejected contents of the collective unconscious represents the archetypal Shadow that undermines the activities of the King’s Court. 

It is maintained in the thesis that television media projections of the King’s Court are a metaphor of the mind, and in particular of the contents of the collective unconscious. The King’s Court as a mythical and archetypal metaphor invites an inspection of the unthought through the epistemology of image. The thesis furnishes a methodology based on the epistemology of television. Through an analysis of popular contemporary films such as the Star Wars Trilogy that are shown to be heavily invested with archetypal motif, discourses for each of the King’s Court archetypes are presented. Foucault’s notion of the rituals and gestures that constitute the true discourse in a regime of truth informs the definition of discourse in the thesis. Discourse in the thesis is to be understood as verbal and non-verbal modes of communication.

Foucault’s notion of disciplinary power provides a method for analysing television news and current affairs programmes as an order of discourse. Disciplinary power enables an understanding of the power relations in television media as the power that circulates in an inquisition between the examiner and the confessor. The archetypes of the King’s Court are projected through the rituals of inquisition in television media.

In the analysis all of the archetypes of the King’s Court are seen except for the Magician. Television it is argued represents the Magician. The Destroyer, the Ruler the Sage, the Warrior and the Fool on television media are controlled by the Magician. The Magician shows that the Ruler’s discourse reflected through the King’s Court represents the regime of truth. The competing discourse of the Destroyer as archetypal foe is located outside of the King’s Court and in opposition to the Ruler’s discourse. The Ruler’s discourse is Apollonine. The Ruler projects the image of control, peace, reconciliation, rationality, serenity, authority, and wealth. The Sage as the intellectual and the Fool as the archetypal Trickster are shown to actively facilitate the power of the Ruler. The Warrior who is projected as a powerful leader may be alienated from the King’s Court.

text: Archetypes and the unthought: The projection of the King’s Court in New Zealand television media This thesis explores archetypal projections of conflict in Television New Zealand’s news and current affairs as an unthought. The television news and current affairs programmes identified in the thesis relate to issues of conflict between the Maori people of New Zealand, and the Government and Crown agencies of New Zealand. The unresolved issues of conflict are manifest in what has become popularly known as the Treaty of Waitangi settlement process.

The thesis is informed by Foucault’s conviction that the unthought is the power that is linked to every mode of knowledge. The thesis argues that knowledge in relation to thought is limited because the knowledge is surrounded by an immense region of shadow. In an ontology based on thought only it is shown how the Shadow and the King’s Court archetypes conceal and prevent human beings from comprehending other discourses.

It is argued that Foucault’s concern with the unthought is reflected in Carl Gustav Jung’s convictions about the collective unconscious. Jung’s theory of the quarternio: thinking, sensing, intuition and feeling that describe the four functions of the mind, inform the theory and the methodology for the thesis. It is proposed that the discursive activities of television media can be understood in relation to Hermes the Greek God of magic, lies and illusion. It is further proposed that the images that are projected from television media can be informed by mythical accounts of Hermes’ behaviour and activity in relation to Zeus, Apollo, Dionysus, and Ares.

In the thesis, the quarternio and the Greek Gods are represented by the archetypes of the King’s Court. The Ruler archetype represents Zeus and Apollo as the thinking function of the mind. The Sage archetype is shown to be located in close proximity to the Ruler. The Warrior archetype represents Dionysus as the sensing function of the mind. The Magician archetype represents Hermes as the intuitive function of the mind. The Fool archetype represents Ares as the feeling function of the mind. The Destroyer archetype as the inferior and rejected contents of the collective unconscious represents the archetypal Shadow that undermines the activities of the King’s Court. 

It is maintained in the thesis that television media projections of the King’s Court are a metaphor of the mind, and in particular of the contents of the collective unconscious. The King’s Court as a mythical and archetypal metaphor invites an inspection of the unthought through the epistemology of image. The thesis furnishes a methodology based on the epistemology of television. Through an analysis of popular contemporary films such as the Star Wars Trilogy that are shown to be heavily invested with archetypal motif, discourses for each of the King’s Court archetypes are presented. Foucault’s notion of the rituals and gestures that constitute the true discourse in a regime of truth informs the definition of discourse in the thesis. Discourse in the thesis is to be understood as verbal and non-verbal modes of communication.

Foucault’s notion of disciplinary power provides a method for analysing television news and current affairs programmes as an order of discourse. Disciplinary power enables an understanding of the power relations in television media as the power that circulates in an inquisition between the examiner and the confessor. The archetypes of the King’s Court are projected through the rituals of inquisition in television media.

In the analysis all of the archetypes of the King’s Court are seen except for the Magician. Television it is argued represents the Magician. The Destroyer, the Ruler the Sage, the Warrior and the Fool on television media are controlled by the Magician. The Magician shows that the Ruler’s discourse reflected through the King’s Court represents the regime of truth. The competing discourse of the Destroyer as archetypal foe is located outside of the King’s Court and in opposition to the Ruler’s discourse. The Ruler’s discourse is Apollonine. The Ruler projects the image of control, peace, reconciliation, rationality, serenity, authority, and wealth. The Sage as the intellectual and the Fool as the archetypal Trickster are shown to actively facilitate the power of the Ruler. The Warrior who is projected as a powerful leader may be alienated from the King’s Court.

year: 2000