Well, I am official Bachelor of Science in Meteorology, but now what? Official to be unemployed (do not have this "Student" label). Yups! It's probably continue my study abroad, or looking for sustainable jobs, though. But, no matter what I will choose, I need to take a note with ....
"El Niño is the warm phase of the El Niño Southern Oscillation (commonly called ENSO) and is associated with a band of warm ocean water that develops in the central and east-central equatorial Pacific (between approximately the International Date Line and 120°W), including off the Pacific coast of South America."
El-Nino is an anomaly that happens on Walker Circulation (One of global circulation that has role on Weather pattern on Earth).
So, It's easy to understand what driven this phenomenon. First, you can Imagine there are a "warm pool" across pacific, that could be shifted to eastern or western area. Because it's kind of a cycle, we can't say "Who's first ?" (kind of "Who's first? Egg or Chicken?"). But, you can say that Indonesia is the main Actor here.
El-Nino happens when the "warm pool" shifts eastward along the equator, toward pacific ocean. Normally, this "warm pool" near Indonesia and the Philippines. But during an El Niño, the Pacific's warmest surface waters sit offshore of northwestern South America. When this warm pool shifts to Nino 3,4, or 3.4 (it's kind of coordinates across pacific ocean), this is gonna affect the pressure on the areas. We know that this "warm pool" gonna make an Low-Pressure Areas, and will create its own circulation ! (Wind blows from High to Low Pressure, right?)
You can see this Picture to compare it yourself
Normal Condition vs El-Nino illustration
See? There are shifting on Convective Areas. And one of greatest effect for "Indonesia", is Indonesia could be Draught and Fire-forest could happen because of it.
Why did I use quotation mark on Indonesia?
So guys, you should understand that Indonesia is a Big Word.
Generally, you may say that "Indonesia" may be affected by El-Nino. But .... not really.
Indonesia, have 3 kind of climate-pattern based on Rainfall peaks.
1. Monsoon Pattern
The Areas with this pattern, usually have a great different between Wet and Dry season. It's clearly driven by Monsoon phenomenon, that happens because of ocean-continent temperature distribution. Eastern Monsoon would bring a lot of water from the Indian-ocean and pacific ocean, different with western Monsoon that's not really carrying moist water across Australian continent and indian-ocean.
2. Equatorial Pattern
The areas within this pattern, usually have 2 rainfall peaks because of the Sun position. We know that, Equator areas would be have 2 Equinox a year, that makes evaporation through Equatior should be maximized and for several areas, it affects them a lot.
3. Local Pattern
Basically, local pattern seems like Monsoon pattern but vice versa. It happens because the local geographic condition (usually happens on the areas near Mountain) because Orography effect.
Indonesia Rainfall Pattern according to BMKG
Generally, we can see Indonesia's pattern here. But, even if we Zoom into Bandung, West Java, we could see this pattern !
Bandung Rainfall mapping according to UNPAD
Believe it or not, the center one has Monsoon Pattern, where the yellow one has Equatorial Pattern, and the orange one has the local pattern because its mountain area. We still need a lot of Research to create climate Map on many Indonesia Areas. Because Indonesia, is really complicated one, and this makes us, Meteorologist, hard to predict the accurate Weather because the Scheme that's not really fit with Indonesia Geographic position.
Back to the Topic, El-Nino does affect "Indonesia", but you must Specify where the Area is, because not all of Indonesia areas be affected with it. Even if El-Nino happened, Bogor might still have some extreme storm though.
I think that's all guys. Hope this could give you a lot of information about El-Nino and La-Nina that's happening lately :)
Halo semua ! So, hari ini, saya akan berbagi tentang apa yang saya dapat saat mengadakan Untukmu Cisitu II pada tanggal 04 Desember 2016, kemarin. Percayalah, selain mendapat pengalaman dari pengonsepan, perencenaan, serta pengembangan project penghijauan ini. Ada beberapa hal yang mungkin perlu saya bagi buat teman-teman yang mungkin berhalangan hadir pada waktu tersebut.
Yups, yang pertama adalah terkait materi pelatihan di hari tersebut. Diawali dengan pembukaan dan kata sambutan dari Presiden KAM Bumi Ganesha ITB, serta Ketua Panitia Cisitu Menghijau II, materi pun langsung diberikan oleh Ibu Chie Chie dan Pak Boy Hidayat dari Green Education Bandung. Setelah melakukan perkenalan singkat serta alasan mengapa penting melakukan penghijauan di wilayah sekitar, kami pun langsung diperkenalkan dengan beberapa sistem tanam Hidroponik, salah satunya adalah Hidroponik wick sederhana. Bahan yang digunakan hanyalah Botol Air mineral 1.5 Liter + Sumbu + Spons
Ilustrasi Sistem Hidroponik wick (Sumber: http://www.kebunhidro.com/)
Diawali dengan membagi botol air mineral 1.5 L menjadi 2 (dimana bagian atas lebih lebar dibandingkan bagian bawah)
Kemudian pada bagian atas botol, diberikan beberapa lubang yang berguna untuk sirkulasi oksigen (aerasi)
Adapun bagian tutup botol dilubangi sedikit dan dimasukkan kain flanel / sumbu sebagai medium tanaman untuk mengambil air.
Setelahnya, ambil bibit/benih tanaman (tidak perlu menggunakan tanah)
Bibit yang telah dibersihkan tanahnya tersebut, kemudian dibungkus dengan media (bisa dalam bentuk spons)
Kemudian letakkan bibit yang telah diberi media ke bagian tutup botol tadi.
Isi bagian bawah botol dengan air nutrisi yang berisi nutrisi Makro (Nitrogen, fosfor, dan Kalium) dan Mikro (Boron, tembaga, besi, dll)
Sistem Hidroponik wick pun telah selesai. Beberapa hal yang perlu dicatat adalah jika botol yang digunakan dapat menembus cahaya matahari (putih, bening, berwarna tapi tidak terlalu pekat), maka bagian bawah botol yang berisi air nutrisi perlu ditutupi oleh plastik hitam. Kenapa? Untuk mencegah pertumbuhan lumut di dalam botol, yang nantinya akan memaksimalkan pertumbuhan tanaman.
Setelah menjelaskan sistem Hidroponik wick, kami disungguhi oleh ilmu penanaman semi hidroponik. Yakni menggunakan tanah bernutrisi (Tanah dicampur dengan sekam padi atau sekam bakar), pastikan tanah dikepal dan coba dilepaskan, jika langsung terurai, maka tanah tersebut baik digunakan untuk media tanam. Media yang digunakan hampir sama, yakni botol 1.5 Liter.
Sumber: http://pojok2.blogspot.co.id/
Diawali dengan membagi botol air mineral 1.5 L menjadi 2 (dimana bagian atas lebih lebar dibandingkan bagian bawah)
Kemudian pada bagian atas botol, diberikan beberapa lubang yang berguna untuk sirkulasi oksigen (aerasi), namun jangan terlalu keatas. Hal ini berguna mengurangi air yang berlebih, tapi tetap menahan beberapa air yang akan digunakan untuk Fotosintesis
Setelahnya, ambil bibit/benih tanaman, masukkan ke dalam media tanah yang telah dicampur sekam tadi.
Dengan menggunakan kawat (yang tidak terlalu tipis, setebal batang korek api), bolongi beberapa bagian lubang, agar dapat digantung menjadi vertical garden
Tambahkan air, dan gantung ke bagian tiang/dinding yang mendapat penyinaran matahari pagi sampai siang.
Nah, sistem ini dikatakan semi hidroponik karena jumlah air yang digunakan tidak terlalu banyak, serta perawatannya tidak terlalu ribet. Mungkin 2 - 3 hari tanaman diberikan air lagi sambil diperhatikan pertumbuhan dan hamanya.
Terakhir, kita diberikan materi tentang cara kerja Hidroponik yang diinstal di BG.
Dokumentasi Pribadi
Nah sistem kerjanya cukuplah sederhana. Bibit yang telah dibungkus ke dalam spons dan dihubungkan dengan sumbu/ kain flanel, kemudian diletak ke dalam bagian paralon. Nah, air nutrisi yang ada di ember, dipompa ke bagian atas paralon, kemudian mengalir ke bawah hingga kembali ke tempatnya lagi. Adapun air nutrisi ini perbangingannya tiap 1 liter air, diberi 5 ml atau 1 tutup botol larutan makro dan mikro. Sistem ini cenderung gampang, karena kontrol bisa dilakukan 2 - 3 hari sekali untuk melihat jumlah air dan hama tanaman (yang cenderung jarang).
Kita juga dikenalkan dengan sistem aquaponik, yaitu airnya bukan lagi dalam 1 tong tersebut, melainkan dari kolam ikan (bisa berisi lele atau ikan mas, dsb). Nutrisi sendiri diambil dari kotoran ikan, jadinya tanaman yang dihasilkan 100% Organik. Belum lagi biasa operasional yang dapat di cut. "Ikan juga menjadi lebih sehat, karena sirkulasi oksigen ada, kolam lebih bersih" Imbuhnya. Nah, sistem pompa 45 watt ini, tidak perlu dihidupkan 24 jam loh! Karena kan fotosintesis kejadiannya dari pagi hingga petang. Jadi juga bisa menghemat listrik kalian.
Gimana? Tertarikkah menggunakan metode ini? Jika iya, alhamdulillah ! Karena ga ada yang tidak mungkin dalam melakukan perubahan :p
"Penghijauan, berkebun, dan menanam sendiri makanan kita bukanlah perkara Tidak ada lahan, namun hanya perkara kemauan hati dan disiplin diri." - Pak Boy, 2016
Semangat gaes! Semoga membantu ! If you have any question, just comment it below, yha :))
Ah, it's been a while I haven't posted anything, yet.
Well, today, I wanna tell you about our last project, Untukmu Cisitu II. Well, actually, it's part of Bumi Ganesha program, to give an education about Hydroponics and Vertical Garden. Well, our goals were:
Getting 50 participants from Cisitu society
Getting 15 participants from Bumi Ganesha occupant
Installed Hydroponics installment so that BG can be an example for local societies
Voila ! After planning and developing the program for almost 3 weeks, we succeed to engage and collaborate with other community, such as "Green Education Bandung". With intense publication (by Poster, Official Account Line, and inviting the societies door to door, directly), we succeed to get more than 60 Cisitu and 20 Bumi Ganesha participants. We gave the material theoretically and practically. Alhamdulillah, the locals were quite enthusiastic, which were giving lots of questions and commitment to try this at their own home.
Pak Boy and Bu Chie Chie from Green Education Bandung gave the workshop
Pak Boy and Bu Chie Chie from Green Education Bandung gave the workshop
Pak Boy and Bu Chie Chie from Green Education Bandung gave the workshop
Met our awesome participants !
Met our awesome participants!
Met one participant took one photo shoot hoho
Met the awesome committees !
Special thanks to Elektro 99 Foundation (which was covering all of the projects fee), Green Education Bandung as a Speaker and Adviser, KM ITB for sharing our projects by their OA Line, YFCA as a partner, and all of the awesome committees ! Cheers !
Hello, my name is Muhammad Rafi Al-Hariri Nasution, I am currently studying in Meteorology Department, Bandung Institute of Technology :) You can call me Rafi, Tanjong, or Ari. I am taking minor in Atmospheric Science and Environmental Meteorology. Atmospheric science was studying about Weather and Climate prediction, but it's much deeper. We were focused on Mesoscale prediction, which is really important for short and long term decision making. Not only mesoscale prediction, we used to learn about Atmospheric teledetection (observation using radar) and ocean and atmosphere interaction. Environmental Meteorology was studying the impact of physical meteorology for the environment. Climate Change, Climate Policy, Agrometeorology, and air pollution modelling is the main subject of Environmental Meteorology.
Big data analysis (3-D, 4-D, and even 5-D of data) has been our main concern. Because in Meteorology, we tend to analyzing data temporally (T), spatially (X and Y), and even vertically (Z). Tools like matlab, excel, fortran, phyton, and R has been our daily tools to analyze this kind of data. So basically, programming, mathematics, physics, interpretation, and even data presentation is a must skills. Because, our societies, government, or client didn't really care about the process but result, and it must be as simple as possible :) So yeah, here I am, studying in one of the most complex fluids on earth (which is so random and having high uncertainty).
My Final Assignment / Thesis is "Prediction of Australian Summer Monsoon (AUSM) and The Beginning of Rainfall Season (BRS) in Java Island by Using Climate Forecast System (CFS) Version 2 Output". Kind of interpreting the output of CFS that's predicting the rain rate, and doing the downscaling data from 1 degree to be 0.25 degree, and evaluating the CFS to predict the AuSM onset and the BRS. Soon, would be registered to International conference or scopus :)
Yups, malam ini saya akan membahas 1 kalimat yang dulunya dianggap sebagai bahan "candaan" namun agaknya mengakar jadi satu pola pikir atau mindset yang salah. Sebelum saya lupa juga haha
"Udah gausah diberesin sampahnya, nanti kan ada tukang bersih-bersih yang ngebersihin. Kalo kita ikut bersihin, nanti mereka makan gaji buta"
Dan kemudian semua tertawa .......
Nah, terus kalimat ini juga sering dikaitkan sama buang sampah di Jalan dsb
Seriously, candaan-candaan gini sering terdengar waktu saya kecil. Hingga akhirnya candaan yang tiada matinya itu terus terlontar. Perlu kita sadari, kalimat-kalimat yang kita dengar ataupun ucapkan, dapat mempengaruhi mindset maupun alam bawah sadar kita secara langsung maupun tidak langsung. Which is, behavior yang HARUSNYA salah, dianggap benar dan tetap dilakukan dan dianggap biasa. Nah, saya jadi teringat sama iklan opini.id yang saya lihat nih ...... Dan iklan ini juga yang mendorong saya untuk nulis terkait ini haha.
(Source: Channel Opini ID)
So gaes, beware with your words! Karena bukan hanya mindset kamu yang bisa berubah, namun juga orang-orang yang berada di dekat kamu (bisa jadi adik, kakak, teman, sepupuh, dsb).
Kenapa memilih kuliah di Meteorologi ITB? (Part-1)
Kenapa Memilih Kuliah di Meteorologi ITB? (Part 2)
Petualangan mencari Sponsorship~
Apprentice Test of Elevenia
Kenapa memilih kuliah di Meteorologi ITB? (Part-3)
Kemarau Basah di Indonesia, Apa Penyebabnya?
Pancasila, Ideologi atau Kontrak Sosial?
Tentang Pilihan (Part 1)
Liburan Akhir Tahun part 1 - Melawan Kemalasan dan Kemageran (Sebuah Kontemplasi)
Kupas Jembatan Layang Non-Tol (JLNT) Casablanca dari Keilmuan Meteorologi