title: Volunteering: A community response to the Rena oil spill in New Zealand

authors: Sargisson, Rebecca J.

subjects: Rena

abstract: We explore the experiences of people who volunteer to help remediate the effects of non-natural environmental disasters. Following the grounding of the Rena, volunteers were engaged to clean up the resulting oil spill on the beaches of Tauranga, New Zealand. Volunteers were later invited to respond to an online questionnaire about their experiences. More women than men responded, and respondents tended to be older, and engaged in the paid workforce or retired. Greater membership in community organizations was associated with a greater participation in clean-up events. Respondents were positive about the experience, and were more positive when they had actually participated in a clean-up event, with positivity remaining high even after multiple volunteer occasions. Recommendations are made for increasing volunteer participation.

text: Volunteering: A community response to the Rena oil spill in New Zealand We explore the experiences of people who volunteer to help remediate the effects of non-natural environmental disasters. Following the grounding of the Rena, volunteers were engaged to clean up the resulting oil spill on the beaches of Tauranga, New Zealand. Volunteers were later invited to respond to an online questionnaire about their experiences. More women than men responded, and respondents tended to be older, and engaged in the paid workforce or retired. Greater membership in community organizations was associated with a greater participation in clean-up events. Respondents were positive about the experience, and were more positive when they had actually participated in a clean-up event, with positivity remaining high even after multiple volunteer occasions. Recommendations are made for increasing volunteer participation.

year: 2012

title: Rates of photospheric magnetic flux cancellation measured with Hinode

authors: Park, Soyoung

subjects: magnetic fields

abstract: Photospheric magnetic flux cancellation on the Sun is generally believed to be caused by magnetic reconnection occurring in the low solar atmosphere. Individual canceling magnetic features are observationally characterized by the rate of flux cancellation. The specific cancellation rate, defined as the rate of flux cancellation divided by the interface length, gives an accurate estimate of the electric field in the reconnecting current sheet. We have determined the specific cancellation rate using the magnetograms taken by the Solar Optical Telescope (SOT) aboard the Hinode satellite. The specific rates determined with SOT turned out to be systematically higher than those based on the data taken by the Michelson Doppler Imager (MDI) aboard the Solar and Heliospheric Observatory. The median value of the specific cancellation rate was found to be 8 × 106 G cm s-1—a value four times that obtained from the MDI data. This big difference is mainly due to a higher angular resolution and better sensitivity of the SOT, resulting in magnetic fluxes up to five times larger than those obtained from the MDI. The higher rates of flux cancellation correspond to either faster inflows or stronger magnetic fields of the reconnection inflow region, which may have important consequences for the physics of photospheric magnetic reconnection.

text: Rates of photospheric magnetic flux cancellation measured with Hinode Photospheric magnetic flux cancellation on the Sun is generally believed to be caused by magnetic reconnection occurring in the low solar atmosphere. Individual canceling magnetic features are observationally characterized by the rate of flux cancellation. The specific cancellation rate, defined as the rate of flux cancellation divided by the interface length, gives an accurate estimate of the electric field in the reconnecting current sheet. We have determined the specific cancellation rate using the magnetograms taken by the Solar Optical Telescope (SOT) aboard the Hinode satellite. The specific rates determined with SOT turned out to be systematically higher than those based on the data taken by the Michelson Doppler Imager (MDI) aboard the Solar and Heliospheric Observatory. The median value of the specific cancellation rate was found to be 8 × 106 G cm s-1—a value four times that obtained from the MDI data. This big difference is mainly due to a higher angular resolution and better sensitivity of the SOT, resulting in magnetic fluxes up to five times larger than those obtained from the MDI. The higher rates of flux cancellation correspond to either faster inflows or stronger magnetic fields of the reconnection inflow region, which may have important consequences for the physics of photospheric magnetic reconnection.

year: 2009

title: Hapū data sovereignty: Tips for getting started

authors: Clark, Vanessa

abstract: This brief is a part of a series, produced for the Tikanga in Technology (TiNT) research programme, that provides a hapū perspective on data sovereignty, data governance, and data privacy. The purpose is to provide practical advice for individuals, whānau, marae and hapū who are embarking on their own hapū data sovereignty kaupapa, with a particular focus on whakapapa data.

text: Hapū data sovereignty: Tips for getting started This brief is a part of a series, produced for the Tikanga in Technology (TiNT) research programme, that provides a hapū perspective on data sovereignty, data governance, and data privacy. The purpose is to provide practical advice for individuals, whānau, marae and hapū who are embarking on their own hapū data sovereignty kaupapa, with a particular focus on whakapapa data.

year: 2025-02-11