Tessa M. Hill

**Tessa Michelle Hill** ƙwararren masanin yan ilimin kimiyar ruwa ne kuma masanin ilimin teku . Ita farfesa ce a Jami'ar California, Davis, kuma farfesa a mazauninta a Laboratory Marine na Bodega. Ita mamba ce ta Kwalejin Kimiyya ta California, kuma a cikin 2016 an ba ta suna Leshner Fellow Fellow na Jama'a na Ƙungiyar Amirka don Ci gaban Kimiyya . A waccan shekarar ta kuma sami lambar yabo ta Shugabancin Amurka na Farko na Ma'aikatan Kimiyya da Injiniya ( PECASE ).

Bincikenta da tasirin tasirin jama'a yana mai da hankali kan tasirin sauyin yanayi a kan tekun duniya, gami da acidification na teku .

## Rayuwar farko da ilimi
An haifi Hill a Tacoma, Washington, Amurka kuma ta girma a cikin Pacific Northwest, inda ta halarci Makarantar Sakandare ta Stadium . Ta sami digiri a fannin kimiyyar ruwa a Kwalejin Eckerd .  Bayan kammala karatun ta yi karatun micropaleontology na ruwa da canjin yanayi a UC Santa Barbara . Bayan ta samu Ph.D. a 2004 an ba ta Jami'ar California Postdoctoral Fellowship a UC Davis na tsawon shekaru biyu, kafin ta shiga sashenta na sashen Kimiyyar Duniya da Duniya.  

## Yankunan bincike
Binciken Hill ya haɗa da methane a cikin teku (methane a cikin hydrocarbon seeps, da clathrate dissociation ), canza iskar oxygenation na teku da kuma tasirin ruwan zafi mai yawan acidic akan bivalves, murjani, da foraminifera .

### Methane a cikin Tekun
A farkon aikinta, Hill ta binciki rawar methane na teku a cikin gyare-gyaren yanayi a benen teku da kuma sakin methane zuwa ginshiƙin ruwa da yanayi.   Wannan aikin ya yi amfani da mahalli na zamani na methane don bincikar abubuwan da suka shafi halitta da sinadarai ga methane. Ya haɗa da sake gina tazarar methane da magudanar ruwa na hydrocarbon a gefen California.

### Ocean acidification
A Bodega Marine Laboratory (kusa da Bodega Head ), Hill da abokan aiki sunyi nazarin tasirin acidification na teku a cikin ɗakin gwaje-gwaje na halitta na yankin California na nahiyar.  Anan, haɓakar ruwa mai wadatar carbon dioxide a kan lokaci yana rage pH a cikin mahallin ruwa na gida. Ɗaya daga cikin ra'ayi game da wannan yanki shine cewa dabbobin gida zasu dace da ruwan acidic (ƙananan pH). Hill da abokan aiki sun nuna cewa ruwan acidic yana da mummunar tasiri akan halayen girma na protozoan zooplankton foraminifera,  oysters,  da mussels.  Kawa da mussels suna taka muhimmiyar rawa a matsayin nau'in tushe a cikin yanayin yanayin ruwa, kuma zooplankton muhimmin tushen abinci ne ga halittu da yawa. Waɗannan binciken sun nuna cewa acidification na teku na iya yin tasiri sosai a kan yanayin yanayin ruwa na California.

Hill ta kasance marubuciya mai ba da gudummawa ga rahotannin gwamnati da yawa game da acidification na teku da tasirin yanayi, ciki har da West Coast Acidification & Hypoxia Panel,   Ma'anoni na Canjin Yanayi a California,  da Ƙididdigar Yanayi na Huɗu don California. . 

### Canjin yanayi na baya da kuma teku
Hill ta yi amfani da bayanan yanayi don fahimtar yadda zafin jiki, yawan aiki, da canje-canjen iskar oxygen a baya suka yi tasiri ga yanayin teku. Hill tana amfani da murjani mai zurfi na teku don sake gina canje-canje a cikin teku cikin ɗaruruwan shekaru.   Hill tana amfani da microfossils a cikin ɗigon ruwa don fahimtar yadda teku ta canza a cikin dubban shekaru, gami da yanayin zafi mai ban mamaki da iskar oxygen   da ke da alaƙa da sauyawa daga glaciation na duniya na baya-bayan nan zuwa yanayin zamani, yanayin zafi. Hill da abokin aikinta Eric Simons sun rubuta wani littafi da ke ba da cikakken nazari kan tasirin sauyin yanayi kan lafiyar tekun duniya da kuma kokarin da jama'a ke yi na magance shi. 

## Kyaututtuka da karramawa
Tessa Hill ta sami lambar yabo ta CAREER Foundation Foundation na Amurka a cikin 2013 saboda bincikenta kan sauyin yanayin yanayin ruwa saboda sauyin yanayi, da aikinta na haɗa ilimin yanayi cikin ilimin K-12 .

A cikin 2014 an zaɓe ta Fellow of the California Academy of Sciences .  An ba ta suna Leshner Public Engagement Fellow  na Ƙungiyar Amirka don Ci gaban Kimiyya a 2016.

Hakanan a cikin 2016, Hill ta sami lambar yabo ta Shugabancin Amurka na Farko na Ma'aikatan Kimiyya da Injiniya (PECASE). Maganar PECASE tana karanta: Don bincikenta na juzu'i wanda ke sanya acidification na zamani na teku da oxygenation na teku a cikin yanayin tsarin duniya na dogon lokaci, da kuma horarwa da wayar da kan malamai da ɗalibai K-12 waɗanda ke ba su kyakkyawar fahimtar kimiyyar teku da canjin yanayi ta hanyar tushen bincike. koyo.

## Haɗin gwiwar jama'a akan binciken kimiyya

### Wayar da kai
A watan Mayu 2017, an gayyaci Hill don ba da lacca na Cibiyar Jama'a na Cibiyar Jama'a ta Rosenburg  a Jami'ar Jihar San Francisco kuma a cikin Mayu 2018 ta ba da Lecture Riser  a Jami'ar Arewa maso Gabas .

A matsayin wani ɓangare na shirin da Gidauniyar Kimiyya ta Ƙasa ke tallafawa, Hill tana jagorantar shirin da ke horar da malaman K-12 a nan gaba a kimiyyar teku, muhalli da kimiyar yanayi. Wannan shirin ya goyi bayan haɓaka manhaja da ƙwarewar bincike ga ɗalibai a cikin Shirin Koyarwar Lissafi da Kimiyya a UC Davis. 

Hill tana aiki a Majalisar Ba da Shawara ta Bankin Cordell National Marine Sanctuary,  Kwamitin Amintattu  don Kwalejin Kimiyya ta California da Kwamitin Amintattu  don Society for Science and the Public .

### Mai jarida
Binciken Tessa Hill an nuna shi a cikin bugu da kafofin watsa labarai na rediyo kan batutuwan da suka shafi kimiyyar yanayi, murjani mai zurfi na teku, da acidification na teku. Waɗannan sun haɗa da labarin ra'ayi na New York Times,  hirar rediyo akan Kimiyyar Juma'a,  da kuma hira game da tasirin acidification na teku akan shellfish akan Rediyon Jama'a na Amurka (NPR).  Bugu da ƙari, an bayyana ta a cikin shirin da ke nuna masana kimiyyar yanayi akan NPR. 

Hira a kan murjani ya bayyana a Al Jazeera America .  Hill ta buga wani Op Ed a cikin Santa Rosa, CA Press Democrat kan rawar da tallafin kimiyyar tarayya ke bayarwa wajen tallafawa ƙirƙira a Amurka.  An bayyana ta a matsayin Masanin Kimiyya-to-Watch a cikin mujallar Scientist,  kuma ita ce mai ba da gudummawa ta yau da kullum na ƙasidu da shafukan yanar gizo    ciki har da Ƙungiyar Ƙwararrun Masana Kimiyya . 

## Ayyukan da aka zaɓa

* *Benthic foraminifera of the Holocene transgressive west-central Florida inner shelf:  paleoenvironmental implications.*  Marine Geology, v. 200, p.&nbsp;263-272. Hill, T.M., Brooks, G.R., Duncan, D.S., Medioli, F.S. (2003).
* *High-resolution records of methane hydrate dissociation:  ODP Site 893, Santa Barbara Basin.* Earth & Planetary Science Letters, v.223 (1–2), p.&nbsp;127-140. Hill, T.M., Kennett, J.P., Spero, H.J. (2004).  
* *Isotopic evidence of methane-derived carbon into living foraminifera from modern methane seeps, Hydrate Ridge, OR.* Geochimica et Cosmochimica Acta, v. 68 (22), p.&nbsp;4619-4627. Hill, T.M., Kennett, J.P., Valentine D.L. (2004).  
* *Effects of carbon dioxide sequestration on California margin deep-sea foraminiferal assemblages.* Marine Micropaleontology, v. 72, p.&nbsp;165-175. Ricketts, E.R., Kennett, J.P., Hill, T.M., Barry, J.P. (2009).
* *Temperature and vital effect controls on Bamboo Coral (Isididae) isotope geochemistry: A test of the “lines method”.* Geochemistry, Geophysics, Geosystems, dos 10.1029/2010GC003443. Hill, T.M., Spero, H.J., Guilderson, T.P., LaVigne, M., Clague, D., Macalello, S., Jang, N. (2011).
* *Glacial and deglacial sea floor methane emissions from pockmarks on the northern flank of the Storegga Slide complex*. Geo-Marine Letters, dos: 10.1007/s00367-011-0258-7. Hill, T.M., Critser, R.B., Paull, C.K. (2011).
* *Bamboo coral Ba/Ca: Calibration of a new deep ocean refractory nutrient proxy.* Earth and Planetary Science Letters, 312: 506–515. LaVigne, M., Hill, T.M., Spero, H.J., Guilderson, T.P. (2011).
* *High-resolution climate “windows” from Santa Barbara Basin: Investigations of Quaternary rapid change.*  Paleoceanography. v. 28, 1–14, doi: 10.1002/palo.20022. White, S.M., Hill, T.M., Kennett, J.P., Behl. R. (2013).
* *Effects of increased pCO2 and geographic origin on purple sea urchin (Strongylocentrotus purpuratus) calcite elemental composition.* Biogeosciences. v. 10, p.&nbsp;3465-3477, dos: 10.5194/bg-10-3465-2013. LaVigne, M., Hill, T.M., Sanford, E., Gaylord, B., Russell A., Lenz, E., Young, M., Hosfelt, J. (2013).
* *Vertical oxygen minimum zone oscillation during the last 20 ka in Santa Barbara Basin: A benthic foraminiferal perspective.* Paleoceanography. v. 29, 1–14. dos: 10.1002/PA002483. Moffitt, S., Hill, T.M., Ohkushi, K., Kennett, J.P., Behl, R. (2014).
* *Nighttime dissolution in a temperate coastal ocean ecosystem increases under acidification.* Scientific Reports, dos: 10.1038/srep22984. *Kwiatowski, L., Gaylord, B.P., Hill, T., Hosfelt, J.D., Kroeker, K.J., Nebuchina, Y., Ninokawa, A., Russell, A.D., Rivest, E.B., Sesboue, M., Caldeira, K. (2016).
* *Ocean acidification alters the response of intertidal snails to a key sea star predator.* Proceedings of the Royal Society B, 20160890. https://dx.doi.org/10.1098/rspb.2016.0890. Jellison, B.M., Ninokawa, A.T., Hill, T.M., Sanford, E., Gaylord, B. (2016).
* *Reproducibility of Ba/Ca variations recorded by northeast Pacific bamboo corals.* Paleoceanography, v. 32 (9), 966–979. Serrato Marks, G., LaVigne, M., Hill, T.M., Sauthoff, W., Guilderson, T.P., Roark, E.B., Dunbar, R.B., Horner, T.J. (2017).

## manazarta