EM27 SOW.pdf

STATEMENT OF WORK

Purchase of 14 Bruker EM27/Sun Instruments and 1 Bruker IFS 125HR System

PR: 4200850460

Background NASA has been tasked with hosting the interagency Green House Gas coordination center at NASA’s Goddard Space Flight Center. As NASA expands into this area, direction has been received by Headquarters to establish a NASA network of ground-based GHG observing instruments while both expanding U.S. capabilities, e.g. the New Opportunity in ROSES: A.51 Increasing Participation of Minority Serving Institutions in Earth Science Division Surface-Based Measurement Networks and tying into the foundational, international COllaborative Carbon Column Observing Network (https://www.imk-asf.kit.edu/english/COCCON.php) and the international Total Carbon Column Observing Network (TCCON;

http://www.tccon.caltech.edu/). The success of COCCON and TCCON is predicated on the acquisition of reference measurements that meet U.S. federal and international standards. The required instrument to do that for COCCON is the Bruker EM 27/Sun Instrument. The required instrument to do that for TCCON is the Bruker IFS 125HR system. This statement of work requires the acquisition of 14 Bruker EM 27/Sun instruments and 1 Bruker Infrared Fourier Spectrometer IFS 125HR system in support of NASA’s GHG and IPMSI initiatives while being in strict adherence to the international agreed upon stands of the COCCON and TCCON networks, respectively. The EM 27/Sun instruments and the IFS 125HR system will be sited after consultation and agreement with NASA ESD Headquarters’ and GSFC ESD management.

Scope This work requires the purchase of 14 Bruker EM27/Sun, which will be initially located at GSFC as well as the purchase of a single Bruker Infrared Fourier Spectrometer IFS 125HR system. The EM27/Sun instruments are ground-based Fourier Transform Spectrometers that are currently being used by collaborators at several universities to support cal/val of OCO and GeoCarb satellite data. An international network of these instruments called COCCON (COllaborative Carbon Column Observing Network, https://www.imk-asf.kit.edu/english/COCCON.php) provides support for retrievals and easy-to-use, publicly available software that can be used by students. The ground-based Infrared Fourier Spectrometer IFS 125HR systems of TCCON provide essential validation resources for the Orbiting Carbon Observatory-2 (OCO-2), OCO-3, the Greenhouse Gases Observing Satellites GOSAT and GOSAT-2, the Sentinel 5P instrument TROPOMI, TanSat, in addition to other missions. The single Bruker Infrared Fourier Spectrometer IFS 125HR system will become part of the international Total Carbon Column Observing Network (TCCON; http://www.tccon.caltech.edu/ )

Requirements Purchase of 14 Bruker EM27/Sun instruments consistent with COCCON requirements and 1 Bruker IFS 125HR system consistent with TCCON requirements. The instrumental standard is based on the EM27/SUN spectrometer that is commercially available through a renowned manufacturer of FTIR spectrometers (Bruker Optics, Ettlingen, Germany) since 2014 which ensures identical reliable performance (https://www.imk-asf.kit.edu/english/3233.php) with minor modifications to meet the specific research configuration requirements of the Government. Not having the identical instrumentation makes the inter-calibration, inter-comparison and interoperability infinitely more challenging. Each EM27/SUN spectrometer is checked and calibrated with respect to the TCCON spectrometer in Karlsruhe before delivery to the end users.

The QC/QA includes a general check of the instrumental performance, e.g. correct optical alignment, laboratory open-path measurements for the determination of the instrumental line shape (ILS) parameters, and finally side-by-side measurements of atmospheric spectra along with the high resolution spectrometer Bruker IF125HR for the determination of residual instrument-specific calibration factors for each species (https://www.imk-asf.kit.edu/english/3224.php). In order to be part of the global COCCON and TCCON networks, each instrument must be identical to allow for that instrument to be part of the common processing chain. The processing and analysis of the measurements requires firstly a preprocessing of the raw interferograms for the generation of spectra and secondly the quantitative analysis of the absorption spectra for the determination of the desired trace gas abundances. For the latter task, a radiative transfer code and an inversion scheme is applied which fits synthetic spectra to the measurements. For this purpose, the KIT offers source-open tools for both the preprocessing PREPROCESS and the subsequent quantitative trace gas analysis named PROFFAST. PREPROCESS has been developed in the framework of the COCCON-PROCEEDS project supported by ESA.

PROFFAST has been developed at KIT to offer a user-friendly application for the trace gas analysis with an optimized performance. PROFFAST accepts *.mod files as used in TCCON for ensuring identical choices for the temperature and water vapor profiles, and the a-priori vertical profiles of the target gases (https://www.imk-asf.kit.edu/english/3225.php). Information regarding the common, interoperable calibration of the instrumentation is found at: https://www.imk-asf.kit.edu/downloads/Coccon/2021-04-30 Instrument-Calibration.pdf and at https://amt.copernicus.org/articles/15/2433/2022/amt-15-2433-2022-supplement.pdf. Having identical instrumentation, both trace gas observing (e.g. the Bruker EM27/Sun system and or the Bruker IFS.125HR system) along with the accompanying agreed upon meteorological standard met station and high precision surface barometric pressure instrumentation is essential to be part of this network.

Deliverables or Delivery Schedule 14 Bruker EM27/Sun instruments and 1 IFS 125HR system, delivered to Robert J. Swap (NASA GSFC, Building 33, Room E109). There will be three sets of deliveries: an initial delivery of 4 EM27/Sun instruments within 20 weeks of the signing of the contract; a second delivery of the 4 EM27/Sun instruments at 28 weeks followed by a third of the 6 remaining EM27s at 36 weeks thereafter by the delivery of the IFS 125HR system at 52 weeks if not before, as it has the longest production and delivery lead time. The instruments should be installed on site shortly after delivery and include all relevant documentation. The installation process, including the duration, personnel count, and any other pertinent details, will be determined and must be agreed upon prior to the award. However, it will involve the offeror's representatives traveling to the Government's facility for the installation. As it currently stands, installation and deployment of the EM27s will rely on U.S. based and Bruker supplied expert technicians whereas, given the highly specialized nature of the Bruker IFS 125HR, Bruker, as part of its quote has included the costs of bringing over the international, world expert on the installation of the 125HR to oversee its deployment and installation for a five-day visit to oversee its delivery and successful operation.

Item No.

Deliverable Delivery Date

Delivery Method Completion Determination

1 Kick-Off Meeting

3 weeks after contract award date

Scheduled meeting with the Contracting Officer's Representative (COR) and the Government’s procurement office.

After the Kick-Off Meeting has been conducted and successfully concluded

2 1st Status update in the

10 weeks after contract

Report format submitted electronically to the COR.

The delivery of the configuration report for form of a short report regarding the manufacturing and delivery schedule award date instruments before shipment and approval by the COR.

3 First delivery shipment of four EM27 instruments

20 weeks after contract award date

To NASA GSFC Upon receiving the instrument and conducting an inspection.

4 Delivery of second shipment of four EM27 instruments

28 weeks after contract award date

To NASA GSFC Upon receiving the instrument and conducting an inspection.

5 Delivery of third shipment of six EM27 instruments

36 weeks after contract award date

To NASA GSFC Upon receiving the instrument and conducting an inspection.

6 Concurrent Delivery and Installation of

IFS125HR

instrument

52 weeks after contract award date

At NASA GSFC Upon receiving, installing, and inspecting the instrument.

7 Testing 52-54 weeks after contract award date

At NASA GSFC Successfully pass the testing to meet the Government's requirement standards.

Government-Furnished Equipment and Government-Furnished Information (N/A)

Place of Performance The initial construction/installation of the instruments shall be performed at Building 33, on the Goddard Space Flight Center facility, Greenbelt Maryland, USA.

Period of Performance The period of performance shall be on the order of 54 weeks from the date of contract award.