Latest status for operational data collection

Project collection status

​Processing status

Please contact Gary Llewellyn (Science / operations coordinator) if you have any questions or concerns: gaew@… (01865 374 391)

19th August

During a period of good conditions over London on the evening, night and morning of the 14th-15th of August data were collected in support of GB08-19. Following this acquisition weather condition deteriorated and have continued to be unsuitable for data collection since. The PCAP instrument was test fitted on the Monday (18.08.08), in prepration for the VOCALS deployment in October, and research teams for projects based in North Wales, the Midlands and the Peak District were primed for a possible improvement of conditions at the end of the week.

11th August

Most forecasts do not indicate suitable conditions for the collection of good quality data this week. However, conditions look encouraging for London on Thursday and Friday and some forecasts indicate that the South of England may be clear on Thursday morning; the West of Scotland may be clear on Friday morning; the East of Scotland clear on Sunday morning and the Peak district and North/West Wales on Monday morning. If conditions continue to be forecast as good for London on Thursday, this will be our primary site from which we will direct our data collection efforts.

Although most of Iceland is clear of cloud the IPY07-09 study site has a tongue of cloud across it. This is forecast to cover the whole island by the weekend.

22nd July

Although some regions in the UK have had good weather during the last few days most of the key science project sites have been in areas where cloud has been present. Nevertheless, the ARSF are not available for the collection of data, the hyperspectral instruments are undergoing calibration / validation with FSF and the Optech LiDAR continues to be in use by its owners at ULM. Remote sensing is due to resume on the 11th of August. During August (after 11.08.08) we will endeavour to collect data from the Midlands, North/West Wales, Cumbria and Scotland. However, during this period our priority sites will be London (in support of GB08-19) and Iceland (in support of IPY07-09). An emailed indication of our flying timetable based on forecasted weather conditions should be distributed in the first week of August. If any research team that anticipates having data collected from their site/sites needs further information then they should contact Gary Llewellyn on 079 1969 7851.

15th July

Yesterday (14.07.08) a failure in the AISA Eagle control system cause us to abort an attempt to collect data from the North bank of the Thames; this problem has been corrected. Unfortunately, despite the present good weather in the South and East of the UK conditions continue to be unfavourable in the Midlands, Cumbria and Scotland. We hope to be able to collect data from Wytham Woods and the Thames this week, however, the passive remote sensing instruments are due to be removed from the aircraft on Friday (18.07.08) in preparation for calibration/validation with FSF in following week. The research teams for one of the Peak District (GB08-02) projects and the project based in North Wales (GB08-13) have deferred the next collection for these projects to August when data collection (with the LiDAR fitted on DCALM) should resume on the 12th of August (12.08.08).

9th July

Weather conditions continue to be unpromising. We do not anticipate collecting any data this week and the forecasts are not encouraging for the start of the next week. The AISA Eagle and Hawk instruments are due to be removed from the aircraft on the 19th of July for transit to Edinburgh for calibration/validation with the FSF and ARSF-DAN.

3rd July 2008

Data were collected from three sites on the 1st of July and it is our intention to collect data from another two sites on Friday (04.07.08), one of which we hope will be synchronised with the collection of LiDAR data by ULM. Our intention is to support projects in Cumbria and Scotland in the coming week. However, support of science in North Wales continues to be problematic. The collection of remotely sensed data should continue until the long overdue calibration/spectral validation of the AISA Eagle and Hawk (21/06/08) and should resume with the LiDAR unified with the other instruments on the Dornier early in August (11/08/08).

25th June 2008

Minor repairs were completed and data were collected from one site in Southern England but cloudy conditions prevailed across our main project areas (Scotland, Cambria, the Midlands and Wales). Contact with research teams, RSPB shops and regular evaluations (based on webcams and a range of weather observation and forecasting websites) did not indicate that conditions would improve before dusk. We hope to be able to support these projects in the next seven days.

19th June 2008

During yesterdays flight the belly-door that protects the remote sensing instruments during take-off, landing and transit seized to the point of not opening. This problem only manifested itself when the aircraft was airborne; therefore it was not identified in the ground checks conducted after the latest sequence of maintenance work. An engineer has arrived from Germany to repair the fault and we hope to be collecting data as soon as possible.

The Optech Airborne Laser Terrain Mapper 3033 will not be available for fitting in the Dornier until the middle of August 2008 and will be returned to its owners after five weeks. Within this time period data were planned for collection from the French Alps and Iceland. Some of the most highly graded projects that require the repeat acquisition of LiDAR data will have those data collected coincidentally in another aircraft by a subcontractor. Some projects that relied on LiDAR data (especially those with multiple acquisitions or those that cannot be supported between 15/08/08 and 11/09/08) will not be supported in 2008. Those projects that had LiDAR data as a primary component and were awarded a low alpha four grade in the 2007/2008 application/review round will not be supported in 2008 and will not be rolled over for collection in 2009. Those projects awarded a mid alpha four grade or higher for which we have been unable to make special data collection arrangements for will be rolled over to 2009. Where a project retains its scientific justification without LiDAR data the ARSF will endeavour to support it as best we can.

11th June 2008

The Dornier's repaired engine has been replaced and the final items of outstanding maintenance should be completed for its return to the UK on the 13th of June. Following this the ARSF have two days of unavoidable procedural commitments. The collection of remotely sensed data should resume at the end of next week (~19th) and continue for the rest of June and most of July.

22nd May 2008

The ARSF's last flight in support of the EUCAARI IMPACT campaign (NL08-01) concluded on the 21st of May. Cloud cover contined to prevent UK remote sensing on the 22nd and the Dornier is due to transit to Germany on the 23rd for the loaned left hand engine to be replaced by our repaired engine. UK remote sensing should resume in the second week of June.

9th May 2008

Clear weather in the Netherlands prevented scientific the support of the EUCAARI IMPACT campaign (NL08-01). This resulted in greater availability of the aircraft in the support of UK remote sensing projects. However, the three days of clear, bright conditions (6th, 7th & 8th) have allowed many of the UK projects with multiple acquisitions to be started. Unfortunately this period was too late for some projects in the South of England that needed 'leaf-off' conditions. Data were collected on all of the clear three days and pre-dawn on the 9th.

22nd April 2008

Following the fitting of a loaned engine the NERC ARSF aircraft has resumed support for UK remote sensing. During the first two weeks in May data collection time will be shared between the support of UK remote sensing and participation in an International experiment in support of science (EUCAARI - NL08/01). The Cambridge LiDAR should be available in the NERC aircraft at the end of May, just after the aircraft is refitted with the repaired engine.

20th March 2008

The NERC ARSF aircraft is presently in Germany. It is undergoing maintenance on its engines and will undergo CAA certification. Following its return to the UK it will be engaged in the support of Atmospheric science. Support for UK remote sensing will resume in mid. April.