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<p class="MsoNormal"><span style="color:#212121">Hello PACE-PAX team,<o:p></o:p></span></p>
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<span style="color:#212121">Some good news: we have been given additional flight hours for the purpose of validating EarthCARE observations in addition to those of PACE. Specifically, we will have an additional 24 flight hours available for the ER-2, to add
to the original 60. There is no planned change to the flight hours or schedule of the other components of the mission.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="color:#212121">We will not extend the duration of the ER-2 component of PACE-PAX. However, ER-2 check flights are currently scheduled for Aug. 26-29 – should we finish early we may attempt a science flight on those days. Otherwise, we will continue
to operate in our previously scheduled Sept. 3-27<sup>th</sup><span class="apple-converted-space"> </span>window. We may need to fly on RDO’s and weekends, and we are working on the details of that with the ER-2 and AFRC team.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="color:#212121">We plan to fly the ER-2 under EarthCARE at least once, with a goal of three or more coordinated sets of observations. We will augment our Validation Traceability Matrix (VTM) to accommodate this and with input from the EarthCARE
validation team. EarthCARE will overfly the PACE-PAX region roughly two hours after PACE, which I think means that we can perform under passes of both spacecraft on the same flight if conditions are right. We will also likely accomplish PACE VTM objectives
when flying under EarthCARE. Furthermore, PACE validation efforts will have access to observations during the PERCUSSION and MAESTRO EarthCARE validation campaigns which will be happening at roughly the same time as PACE-PAX in the Atlantic Ocean.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="color:#212121">In the near future I hope to bring members of the EarthCARE validation team to our meetings to discuss more. The EarthCARE launch date is at the end of May, so these are exciting times.<span class="apple-converted-space"> </span><o:p></o:p></span></p>
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<span style="color:#212121">In the meantime, please take this into consideration as you plan your PACE-PAX registration, and don’t hesitate to reach out if you have questions or concerns. And should you see Jack Kaye or Laura Lorenzoni at NASA HQ, thank them
for their support.<o:p></o:p></span></p>
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<span style="color:#212121">Best regards<o:p></o:p></span></p>
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<span style="color:#212121">Kirk, Brian, Ivona, Sommer and Judy<o:p></o:p></span></p>
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<span style="color:#212121">PS More info on EarthCARE and EarthCARE validation<o:p></o:p></span></p>
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<span style="color:#212121"><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fearth.esa.int%2Feogateway%2Fmissions%2Fearthcare&data=05%7C02%7Cpace-pax%40espo.nasa.gov%7C3d6af9d9415c4353f3fe08dc59d27e42%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638484007793864787%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=gkfRFvxm04Z6gk5HkNvEwhnZiRDfnu1C8mOazBnUwEE%3D&reserved=0" originalSrc="https://earth.esa.int/eogateway/missions/earthcare" shash="U/+NEFnU25GoJpUEwco6hSXfScnmBdBmqdR5+pdS+LTPm6LV4ZwPTjtRR7abK66eZJsqle2L0XNM2XvhTtCqFBcVTRpXnbn74lT8u0NM0G+/6azCvscuaACEkhhQ0Y8C4da01aM4rtNgtdIWk4TE0I/3iB3SDwElI+7HKOw9gIg=" originalsrc="https://earth.esa.int/eogateway/missions/earthcare" shash="Qppja1oy3ftJMO47eOfwvkoYiKqlpfY24s3F/gKGkI+JHy/s7CsIF9WTBmZ/VPD7D4mjOUC8Ibgu50sTHlQ+9fGFwhR62FA6izm7M+eQItg8oTV+fnkeJwkKVcWb62tVp+OVSuNTabZ68PXE+tI9NX8lizd6oCqqhDDpRoasCzM=" title="Original URL:
https://earth.esa.int/eogateway/missions/earthcare
Click to follow link."><span style="color:#0078D7">https://earth.esa.int/eogateway/missions/earthcare</span></a><o:p></o:p></span></p>
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<span style="color:#212121">Wehr, T., Kubota, T., Tzeremes, G., Wallace, K., Nakatsuka, H., Ohno, Y., Koopman, R., Rusli, S., Kikuchi, M., Eisinger, M., Tanaka, T., Taga, M., Deghaye, P., Tomita, E., and Bernaerts, D.: The EarthCARE mission – science and system
overview, Atmos. Meas. Tech., 16, 3581–3608,<span class="apple-converted-space"> </span><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdoi.org%2F10.5194%2Famt-16-3581-2023&data=05%7C02%7Cpace-pax%40espo.nasa.gov%7C3d6af9d9415c4353f3fe08dc59d27e42%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638484007793864787%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=56QxEq3VY6T3lCHcU8SxE0776tSClUAPU8YmBgLQyO4%3D&reserved=0" originalSrc="https://doi.org/10.5194/amt-16-3581-2023" shash="f7yi5eDJknNh3V20yRGri24ZStpGnPvHiZQ0/w3QdWcTvM9fSWl6IXFCYBAZdrN6B04lllpthqOqIJR4TD3urvfND4N0eLiOQzC5ubvu9yvyUDcTKCuI3g+jLfu7/mmj80J/FtDUf6GKARy3+UDF79MFJJp0CvDX9yitbRuXUU4=" originalsrc="https://doi.org/10.5194/amt-16-3581-2023" shash="jbZtwtE4PYC6DH8LV3jswPdROyfNGkkxZgpFb1bZl83TOZZSMTJXi7zrj592lh/+v8uKsiiQM/dYdm1R/UF90W2LPp38oLTcU0nIu0s3WgppXmqqbXRApnb3TIewAhg5PfhhAPt5YgIOAiSg99TG4oy4xaNF8Mw3WdW1zbHBrMg="><span style="color:#0078D7">https://doi.org/10.5194/amt-16-3581-2023</span></a>,
2023.<o:p></o:p></span></p>
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<span style="color:#212121"><a href="https://gcc02.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.earthcare-science-validation-2023.org%2F&data=05%7C02%7Cpace-pax%40espo.nasa.gov%7C3d6af9d9415c4353f3fe08dc59d27e42%7C7005d45845be48ae8140d43da96dd17b%7C0%7C0%7C638484007793864787%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=lgYCJIkj0YwHWiLya4h7MGdNruiaCz5yTmSB54aKZiU%3D&reserved=0" originalSrc="https://www.earthcare-science-validation-2023.org/" shash="Fmf/7nfqpf/LvvdxTCI+IpaIDCB1c31oUHFR6WHo5J7hAhNKtXYHqowdSSXBBs8dGbCOO97GnCrLcu9249FHIvRABcaeZPMqjIHpIhrlMfiQr74L5I1IVLPvPa00Ct9VULG1Cwtw7OchNrN/rvZLgVfv+XDJlRoPWs4w2MIN7V8=" originalsrc="https://www.earthcare-science-validation-2023.org/" shash="jqfr4X7W0k2KWhvaFbdWzf8vgz4vQiWS/EBbB//lumua1PCivezLt5eksVavzKshTYOm1ejpkXzlQOwwCiufwqk36ZTUvuvglw6FFtmOwnonFVrSVSQ7s0yFh6CqcmgHwzXhRrLMbP1iAHD3+S+Qa7F/FXEyQvxMpqb7KDdBgyk=" title="Original URL:
https://www.earthcare-science-validation-2023.org/
Click to follow link."><span style="color:#0078D7">https://www.earthcare-science-validation-2023.org/</span></a><o:p></o:p></span></p>
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<span style="font-family:"Calibri",sans-serif;mso-ligatures:none"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none">Kirk D. Knobelspiesse
</span></b><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none">(he, him, his)<b><o:p></o:p></b></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none">NASA Goddard Space Flight Center, Ocean Ecology Laboratory<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none">https://science.gsfc.nasa.gov/sed/bio/kirk.d.knobelspiesse<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none">------> In person at GSFC on Mondays, Tuesdays, Wednesdays<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:Consolas;mso-ligatures:none"><o:p> </o:p></span></p>
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