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Domenica, 25 Giugno 2017 21:39

Quali requisiti vorresti per le future missioni Landsat?

Redazione GEOmedia

L'US Geological Survey (USGS) ha pubblicato una RFI (Richiesta di informazioni) sulle necessità utenti per le future missioni Landsat. L'obiettivo primario di questa RFI è quello di determinare se queste esigenze sono rappresentative della più ampia comunità di utenti Landsat, tra cui, ma non solo, il settore privato, le agenzie governative, le organizzazioni non governative e gli universitari, sia nazionali che stranieri. Le risposte a questa RFI verranno considerate insieme ad altri input nella formulazione futura del sistema.

L’USGS attualmente gestisce due veicoli spaziali di proprietà del governo, Landsat 7 e 8. Le orbite sono compensate per creare un'efficace revisione ogni otto giorni con i due veicoli spaziali, registrando centinaia di scene alla risoluzione moderata di 30 metri nel campo del Visible / Near Infrared (NIR) / swap a raggi infrarossi (SWIR), 15 metri con la panoramica multicentrale, 60/100 metri con la termica a infrarossi, con dimensioni di 180-190 Km.

Le missioni future di Landsat si stanno pianificando come parte del programma congiunto USGS e NASA Sustainable Land Imaging (SLI). Il programma SLI consente lo sviluppo di un sistema multi-decade e spaziale che fornirà agli utenti in tutto il mondo misure di alta qualità e globali, che siano compatibili con l'attuale set di registrazioni di 45 anni, affrontando temi a lungo termine.

Una missione di Landsat 9 sotto SLI è attualmente in fase di sviluppo, con un lancio anticipato verso la fine del 2020. Attualmente, USGS sta raccogliendo requisiti utente e la NASA sta conducendo indagini tecnologiche per dar corpo ad una decisione del 2018 sulle capacità di misurazione per la prossima missione SLI Landsat 9.

L'USGS ha ampiamente raccolto i requisiti degli utenti degli Stati Uniti che coprono un'ampia gamma di applicazioni per contribuire a formulare missioni per Landsat 9. I requisiti sono stati raccolti attraverso interviste con esperti in materia che attualmente utilizzano Landsat e altri dati telerilevati a risoluzione moderata. L'accento è stato posto sulla risoluzione spaziale, la frequenza temporale e i requisiti spettrali. Le domande poste durante le interviste per i requisiti utente sono state condotte indipendentemente dalla tecnologia Landsat corrente.

L'obiettivo primario di questa RFI è quello di determinare se le esigenze emerse fino ad oggi sono rappresentative della più ampia comunità di utenti Landsat, tra cui, ma non solo, il settore privato, le agenzie governative, le organizzazioni non governative e gli universitari, sia nazionali che stranieri. Le risposte a questa RFI verranno considerate insieme ad altri input nella formulazione futura del sistema.

 

RFI response must include:

• Primary point of contact for the response (name, email, phone and affiliation)

• Identification of other key individuals who collaborated on the RFI response

• Responses to the following questions:

1. CURRENT LANDSAT USAGE: How are you using Landsat or other moderate-resolution land imaging data, and what types of customers/users do you serve?

2. SPATIAL RESOLUTION: What spatial resolution for all optical bands and thermal infrared bands would make Landsat data more useful to your application? What would be the benefits of the improved spatial resolution (over current Landsat data) for your applications?

3. TEMPORAL FREQUENCY OF CLOUD-FREE IMAGERY: What frequency of cloud-free imagery would make Landsat data more useful to your application? What would be the benefits of the improved frequency of cloud-free imagery (over current Landsat data) for your applications?

4. SPECTRAL CHARACTERISTICS: a) What improvements to current Landsat spectral bands would make it more useful to your application? Please be specific and explain the benefits of the improvement. b) What additional spectral bands would make Landsat data more useful to your application? Please specify band center/width of the additional bands. What would be the benefits of the improved and/or new spectral bands?

5. OTHER: Do you have any additional recommendations for enhancements to Landsat radiometric resolution, signal-to-noise ratio, geographic coverage, data continuity, latency, swath width, data access or format, or the need for nighttime imaging? If so, please describe the benefits of the enhanced capability for your applications.

6. PRIORITY: Among all the Landsat attributes (spatial, temporal, spectral, radiometric, etc.) discussed above, which Landsat attributes are of most importance to your work?

RESPONSE SUBMISSION DEADLINE: Responses are due no later than 11:00 am ET, July 14, 2017. Please send responses via email to the Contracting Officer at Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.; or by mail to: Vickie Floyd, U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 205, Reston, VA 20192. Inquiries regarding the RFI shall be sent to Vickie Floyd at: Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo. during the open RFI period. DISCLAIMER: This is not an announcement of a Solicitation; it is only a Request for Information (RFI). This RFI is issued solely for information and planning purposes and does not constitute a solicitation. No reimbursement will be made for any costs associated with providing information in response to this RFI or any follow-up information requests. Respondents needing confidential treatment for any proprietary information they furnish must comply with the USGS' confidential treatment regulations, 17 C.F.R. 200.83 (Confidential treatment procedures under the Freedom of Information Act). Responses to this RFI will not be returned. Respondents will not be notified of the result of the review. The USGS will not accept unsolicited proposals related to this announcement.

La RFI, di seguito riportata è accessibile su:
https://www.fedconnect.net/FedConnect/PublicPages/PublicSearch/Public_Opportunities.aspx

Request for Information (RFI) User Needs for Future Landsat Missions PURPOSE AND SCOPE: The U.S. Geological Survey (USGS) Land Remote Sensing Program has collected a diverse set of U.S. Federal civil user measurement needs for moderate-resolution land imaging to help formulate future Landsat missions. The primary objective of this RFI is to determine if these needs are representative of the broader Landsat user community, including, but not limited to, private sector, government agencies, non-governmental organizations and academia, both domestic and foreign. Responses to this RFI will be considered along with other inputs in future system formulation. CURRENT LANDSAT SYSTEMS: The USGS currently operates two government-owned spacecraft, Landsats 7 and 8. The orbits are offset to create an effective 8-day revisit with the two spacecraft, collecting hundreds of moderate-resolution 30 meter spatial resolution Visible/Near Infrared (NIR) / Shortwave Infrared (SWIR), 15 meter panchromatic and 60/100 meter Thermal Infrared (TIR) multispectral scenes (each 190-by-180 kilometers) per day. FUTURE LANDSAT MISSIONS: Future Landsat missions are being planned as part of the joint USGS and NASA Sustainable Land Imaging (SLI) program. The SLI program enables the development of a multi-decade, spaceborne system that will provide users worldwide with high-quality, global, land-imaging measurements that are compatible with the existing 45-year record, address near-and longer-term issues of continuity risk, and evolve flexibly and responsibly through investment in, and introduction of, new sensor and system technologies. A Landsat 9 mission under SLI is currently in development, with anticipated launch in late 2020s. Currently, USGS is gathering user requirements and NASA is conducting technology investigations to inform a 2018 decision on the measurement capabilities for the next SLI mission to follow Landsat 9. FUTURE LANDSAT MISSION USER NEEDS: The USGS has extensively collected U.S. Federal civil user requirements covering a wide range of applications to help formulate follow-on missions to Landsat 9. Requirements were collected through interviews with subject matter experts who currently use Landsat and other moderate-resolution data. Emphasis was placed on collecting spatial resolution, temporal frequency, and spectral requirements. The questions posed during the user requirements interviews were system-agnostic in order to capture user needs independent of current Landsat technology. This RFI is seeking similar information with the questions below which address current and enable future applications of moderate resolution imagery. RESPONDING TO THIS RFI: RFI response must include: • Primary point of contact for the response (name, email, phone and affiliation) • Identification of other key individuals who collaborated on the RFI response • Responses to the following questions: 1. CURRENT LANDSAT USAGE: How are you using Landsat or other moderate-resolution land imaging data, and what types of customers/users do you serve? 2 2. SPATIAL RESOLUTION: What spatial resolution for all optical bands and thermal infrared bands would make Landsat data more useful to your application? What would be the benefits of the improved spatial resolution (over current Landsat data) for your applications? 3. TEMPORAL FREQUENCY OF CLOUD-FREE IMAGERY: What frequency of cloud-free imagery would make Landsat data more useful to your application? What would be the benefits of the improved frequency of cloud-free imagery (over current Landsat data) for your applications? 4. SPECTRAL CHARACTERISTICS: a) What improvements to current Landsat spectral bands would make it more useful to your application? Please be specific and explain the benefits of the improvement. b) What additional spectral bands would make Landsat data more useful to your application? Please specify band center/width of the additional bands. What would be the benefits of the improved and/or new spectral bands? 5. OTHER: Do you have any additional recommendations for enhancements to Landsat radiometric resolution, signal-to-noise ratio, geographic coverage, data continuity, latency, swath width, data access or format, or the need for nighttime imaging? If so, please describe the benefits of the enhanced capability for your applications. 6. PRIORITY: Among all the Landsat attributes (spatial, temporal, spectral, radiometric, etc.) discussed above, which Landsat attributes are of most importance to your work? RESPONSE SUBMISSION DEADLINE: Responses are due no later than 11:00 am ET, July 14, 2017. Please send responses via email to the Contracting Officer at Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.; or by mail to: Vickie Floyd, U.S. Geological Survey, 12201 Sunrise Valley Drive, MS 205, Reston, VA 20192. Inquiries regarding the RFI shall be sent to Vickie Floyd at: Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo. during the open RFI period. DISCLAIMER: This is not an announcement of a Solicitation; it is only a Request for Information (RFI). This RFI is issued solely for information and planning purposes and does not constitute a solicitation. No reimbursement will be made for any costs associated with providing information in response to this RFI or any follow-up information requests. Respondents needing confidential treatment for any proprietary information they furnish must comply with the USGS' confidential treatment regulations, 17 C.F.R. 200.83 (Confidential treatment procedures under the Freedom of Information Act). Responses to this RFI will not be returned. Respondents will not be notified of the result of the review. The USGS will not accept unsolicited proposals related to this announcement.

 


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